Showing papers on "Vehicle frame published in 2020"

Experimental Determination of the Manson-Coffin Curves for an Original Unconventional Vehicle Frame.

Abstract: This article is divided into two parts—in the first part, authors inform about their testing device that enables the acquisition of results from uniaxial and multiaxial fatigue tests (the bending−torsion combination). We present the approaches used during designing and building the testing device. The direct implementation of the research in the second part will concentrate on implementing the acquired results for the frame design of a vehicle worked out by the authors. The three-wheeled vehicle has the front steered wheel suspended in an unconventional way. This original design can cause an increased load on the vehicle’s frame. This can be apparent mainly during driving through curves. Therefore, the fatigue curves of the tested material (EN AW 6063) will be implemented from the point of view of its usability in operation. A vehicle frame is most often loaded by bending and torsion. The authors assess the influence of welding on the fatigue life of this unique unconventional vehicle by determining the fatigue curves of the material for its production. The stresses achieved on the test specimens fully correspond to the load of the frame (in welds) during its operation.

On modelling of simulation model for racing car frame torsional stiffness analysis

Abstract: This paper concerns the modelling of the simulation structure for the torsional stiffness evaluation of a Formula SAE vehicle frame and presents some insights into the modelling of the problem using a beam-like model together with geometrical simplifications. The insights consist of presenting utilized simplifications and assessing their influence on torsional stiffness. The simulation model, consisting of the vehicle frame, suspension and testing fixture of complex shapes, requires certain simplifications to achieve a sustainable modelling and computational time while getting reasonable results. The influence of simplifications such as a linear isotropic material model for carbon-fibre and geometrical simplifications of the suspension, frame and testing fixture are discussed. The simulation model was developed in such a way to allow the easy change of cross-sections and geometry during the vehicle design process. The simulation model was also experimentally validated. A comparison of the results from the simulation and testing showed an acceptable difference (up to 10%), thus a small influence of the material and geometrical simplifications on the results of torsional stiffness is considered.

Four-way shuttle vehicle

Abstract: The invention provides a four-way shuttle vehicle, so as to solve the technical problem that in the prior art, synchronous jacking or descending of a four-way shuttle vehicle during reversing is difficult. The four-way shuttle vehicle comprises a vehicle frame, a two-way driving device, a control device and a power battery. The frame comprises a first vehicle body, a second vehicle body and a hydraulic reversing system. The second vehicle body can slide up and down relative to the first vehicle body; a first wheel set is mounted on the first vehicle body; a second wheel set is mounted on the second vehicle body; the first wheel set and the second wheel set respectively drive the four-way shuttle vehicle to move in two vertical directions, the hydraulic reversing system comprises a hydraulic pump station, a synchronous hydraulic cylinder, a first driving hydraulic cylinder set and an electric control valve set, and the hydraulic pump station synchronously transmits ascending driving force or descending driving force to all the driving hydraulic cylinders through the synchronous hydraulic cylinder; and the control device comprises a control module and a wireless communication module.

Strength numerical analyses of the construction of the PAWO autonomous high mobility platform

Abstract: The paper presents the results of the tests of strength and torsional stiffness of the PAWO autonomous high mobility vehicle frame, using numerical analyses using the FEM finite element method, as well as energy storage (battery) strength analyses in accordance with UNECE Regulation No. 100. The most important element of the vehicle structure is part of the space frame or safety cage. The engine, braking system, fuel system and steering system, suspension, as well as the body and parts, their assembly knots, hinges, locks, etc. are attached to the frame. The frame must therefore be of sufficient strength to protect the structure and the load in the event of overturning or impact. The frame is made of steel pipes of specific dimensions, and strength is determined by regulatory requirements. The torsional stiffness of the vehicle chassis has a significant impact on its driving characteristics and is therefore an important parameter for measurement. Energy storage (battery) testing is of great importance from the point of view of the safe operation of an electric vehicle.

Frame loads accuracy assessment of semianalytical multibody dynamic simulation methods of a recreational vehicle

Abstract: The design of a vehicle frame is largely dependent on the loads applied on the suspension and heavy parts mounting points. These loads can either be estimated through full analytical multibody dynamic simulations, or from semi-analytical simulations in which tire and road sub-models are not included and external vehicle loads, recorded during field testing, are used as inputs to the wheel hubs. Several semi-analytical methods exist, with various modeling architectures, yet, it is unclear how one method over another improves frame loads prediction accuracy. This study shows that a semi-analytical method that constrains the vehicle frame center of gravity movement along a recorded trajectory, using a control algorithm, leads to an accuracy within 1% for predicting frame loads, when compared to reference loads from a full analytical model. The control algorithm computes six degrees of freedom forces and moments applied at the vehicle center of gravity to closely follow the recorded vehicle trajectory. It is also shown that modeling the flexibility of the suspension arms and controlling wheel hub angular velocity both contribute in improving frame loads accuracy, while an acquisition frequency of 200 Hz appears to be sufficient to capture load dynamics for several maneuvers. Knowledge of these loads helps engineers perform appropriate dimensioning of vehicle structural components therefore ensuring their reliability under various driving conditions.

Sensing-enabled automatically foldable vehicle frame

Abstract: A sensing-enabled automatically foldable vehicle frame comprises a vehicle frame, a seat, an electric pushrod, a sensor, a controller, and a manual switch. The seat is provided at the vehicle frame. The electric pushrod is provided at the vehicle frame to drive folding and unfolding of the vehicle frame. The sensor is provided at a surface of the seat. The controller is used to receive a signal from the sensor so as to control extension or retraction of the electric pushrod. The manual switch is electrically connected to the controller. The manual switch is disabled when the sensor detects existence of pressure, and the controller controls the electric pushrod to remain in a retracted state, thereby ensuring the vehicle frame to remain in an unfolded state. The manual switch is enabled when no pressure is detected by the sensor, and the controller drives the electric pushrod to extend or retract so as to drive folding or unfolding of the vehicle frame. The present invention can prevent a vehicle frame from being folded accidentally, thereby protecting a user from being hurt.

Fitness/competition vehicle

Abstract: The invention discloses a fitness/competition vehicle, and the vehicle comprises a vehicle frame, a bottom frame, a pedal wheel assembly, an inertia wheel assembly, a handle and a seat. The rear partof the vehicle frame is pivoted with the bottom frame, and a first pivoting shaft between the vehicle frame and the bottom frame is distributed in the length direction of the bottom frame, so the rearpart of the vehicle frame can swing towards two sides relative to the bottom frame; the handle is rotatably mounted at the front part of the vehicle frame; a linkage piece is coaxially installed on the lower portion of the handle, a rail for the linkage piece to move is arranged on the front portion of the bottom frame, and the linkage piece of the handle is arranged in the rail of the bottom frame in a matched mode, so when the handle rotates leftwards or rightwards, the linkage piece moves in the corresponding direction of the rail, and the frame is driven to incline leftwards or rightwards. According to the invention, the left-right swinging and front-back pitching forms of the vehicle frame can be realized, and the left-right swinging and front-back pitching forms of the vehicle framecan also be controlled, so better interaction with computer pictures can be realized.

Automobile driving safety performance improving assembly

Abstract: The utility model discloses an automobile driving safety performance improving assembly, and relates to the technical field of automobile safety equipment. The automobile driving safety performance improving assembly comprises an automobile frame. Protective air bag arranged in frame, distance sensors are arranged in the middles of the front and rear sides of the frame; the device is used for detecting front-back vehicle distance in the driving process. A voice broadcasting system and a brake control system which are connected with the distance sensor are arranged in the frame; the processor is used for receiving the distance information for voice broadcasting or automatic braking; two groups of same anti-collision air bags are arranged in front of and behind the frame; the distance between a vehicle and a front vehicle and the distance between the vehicle and a rear vehicle can be monitored in real time through the distance sensors in the middles of the front portion and the rear portion of the vehicle frame, a driver can keep a proper vehicle distance conveniently, the voice broadcasting system can prompt the driver when the vehicle distance is too small, and misjudgment of the driver on the vehicle distance is avoided. And the brake control system can automatically brake the vehicle at proper time.

Intelligent balance building climbing logistics trolley with parallel mechanism

Abstract: The utility model discloses an intelligent balance building climbing logistics trolley with a parallel mechanism. The device comprises a frame and a control unit, walking mechanisms are installed at the four corners of the bottom of the trolley frame. Wherein a vehicle-mounted plane is connected above the vehicle frame through five-axis connecting rod supporting mechanisms, the number of the five-axis connecting rod supporting mechanisms is four, the five-axis connecting rod supporting mechanisms are located at the four corners of the top of the vehicle frame respectively, the walking mechanism comprises a wheel carrier installed at the bottom of the vehicle frame and driven by a motor, and omnidirectional wheels driven by a stepping motor are installed on the wheel carrier. According to the utility model, switches and rotating speeds of the motor, the stepping motor, the direct-current motor a and the direct-current motor b are controlled by the single-chip microcomputer; and the gradienter sensor controls the linkage of the parallel mechanism, so that the vehicle-mounted plane is kept horizontal in the driving process of the vehicle, and the unmanned driving functions of navigation, tracking, obstacle avoidance and the like are realized under the control of the single chip microcomputer, the navigation system and the obstacle avoidance system.

Container transport vehicle

Abstract: The utility model discloses a container transport vehicle which comprises a vehicle head and a vehicle body connected with the vehicle head. A chassis is arranged on the vehicle body and comprises a main vehicle frame, an auxiliary vehicle frame and a container loading platform, and the container loading platform is arranged through the main vehicle frame. The container loading platform is provided with a tilt angle sensor used for sensing the angle between the container loading platform and the horizontal plane. The container loading platform is provided with a rotating mechanism which is connected with the container loading platform and can adjust the angle between the plane where the container loading platform is located and the horizontal plane. The transport vehicle is provided with aprocessing module which receives the angle sensed by the tilt angle sensor and controls the rotating mechanism to rotate by the corresponding amplitude according to the angle, so that the angle between the plane where the container loading platform is located and the horizontal plane is lower than a set threshold value. Inclination angle data of the container loading platform and the horizontal plane can be sensed, and therefore the container loading platform can be conveniently controlled to adjust the angle of the container loading platform relative to the transport vehicle chassis along with the inclination angle.

Multi-wheel loading platform

Abstract: The utility model provides a multi-wheel loading platform. The multi-wheel loading platform comprises a frame, the driving device is mounted in the mounting space of the frame and used for driving theframe to move and steer; the front suspension device is installed in the installation space of the vehicle frame and used for balancing the vehicle frame and bearing, and the front suspension deviceand the driving device jointly support the vehicle frame and drive the vehicle frame to move; the auxiliary frame is flexibly connected with the frame and located on the side, close to the driving device, of the frame. The auxiliary frame comprises an auxiliary frame connecting piece, a pedal supported and fixed to the top of the auxiliary frame connecting piece, pedal trundles installed at the bottom of the pedal and flexible pieces fixed to the auxiliary frame connecting piece and the frame respectively, and the auxiliary frame connecting piece and the frame are flexibly and fixedly connected through the flexible pieces. Compared with the prior art, the multi-wheel carrying platform is long in service life and good in reliability.

Moving target vehicle and unmanned driving test system

Abstract: The invention relates to a moving target vehicle and an unmanned driving test system. The moving target vehicle comprises a vehicle body frame (2) formed by assembling metal plates, an elastic vehicleframe and a walking wheel set. The elastic vehicle frame comprises at least two plate spring components (3), the walking wheel set is pivotally mounted on the elastic vehicle frame, the walking wheelset comprises a plurality of walking wheels, each end part of each plate spring component (3) is correspondingly provided with a walking wheel, and the vehicle body frame (2) is supported and connected to the middle position of each plate spring component (3). According to the technical scheme, the moving target vehicle provided by the invention can reduce a height size of the moving target vehicle while giving consideration to a vibration reduction function.

Railway track cleaning and maintaining device

Abstract: The invention relates to a railway track cleaning and maintaining device, including a vehicle frame, wherein the vehicle frame comprises a first vehicle frame and a second vehicle frame which are connected with each other; the first vehicle frame is arranged under the second vehicle frame; track wheels are installed on the lower portion of the first vehicle frame; walking wheels are installed on the lower portion of the second vehicle frame; the track wheels can drive the vehicle frame to travel along a railway track, and the walking wheels can drive the vehicle frame to travel along the ground; and the distance value of the first vehicle frame and the second vehicle frame in the vertical direction can be adjusted, so that the distance between the lowest point of the track wheels and the lowest point of the walking wheels in the vertical direction is changed by the same value.

Convertible two-wheeled vehicle

Abstract: The utility model discloses a convertible two-wheeled vehicle, one of the wheels can steer by means of a handlebar, two containing parts are installed on the vehicle frame, a pedal crank unit is arranged, and the pedal crank unit is provided with a fixing element. And the fixing element can be connected with the two accommodating parts on the frame in a shape matching manner. A convertible two-wheeled vehicle may be refitted from a cruising vehicle to a bicycle without tools, in particular by hooking and latching a pedal crank unit into a receptacle of the frame.

Multifunctional wiring hydraulic ladder truck

Abstract: The invention discloses a multifunctional wiring hydraulic ladder truck. The multifunctional wiring hydraulic ladder truck comprises a vehicle frame, two parallel pedals are fixedly connected to the outer wall of the vehicle frame, an operation platform is fixedly connected to the top of the vehicle frame, a guardrail is fixedly connected to the top of the operation platform, a first storage cabinet is fixedly connected to the outer wall of the vehicle frame, and a lifting mechanism is fixedly connected to the position, close to the bottom, of the inner wall of the vehicle frame. The vehicle frame, the guardrail, universal wheels capable of being adjusted in a lifting mode and the like are arranged, when the vehicle frame is jacked up and the universal wheels are singly used for being in contact with the ground, the ladder truck can be easily moved, when the universal wheels are folded to enable the frame to be in stable contact with the ground, the frame is matched with the pedal andthe operation platform to enable workers to easily complete climbing operation, the convenience of transferring the ladder truck is greatly improved while the potential safety hazards are eliminated,the use effect is good, the abrasion speed of the universal wheels is effectively reduced, and the maintenance cost is reduced.

Hybrid battery holder and vehicle frame assembly

Abstract: The present invention discloses a hybrid battery holder and vehicle frame set, comprising a battery set, a battery connector, a battery mounting block, a battery mounting base, and a frame load-bearing tube fitting. In the present invention, the battery mounting block for fixing the battery set and vehicle load bearing tube fitting which forms a highly rigid structure with the rest parts on the vehicle are designed to be two individual parts, as a consequence, it is only necessary to consider the rigidity of the vehicle structure instead of the effect on the height of the vehicle load bearing tube fitting after inserting the battery set, material selection is greatly facilitated. In the meantime, with the vehicle load-bearing tube fitting which coordinates with the rest components on the vehicle frame to form a highly rigid structure the vehicle structure can be simplified to a great extent, and all of the battery mounting base, the battery mounting block and the battery connector can be massively fabricated with molds.

Collapsible electric vehicle, vehicle frame for same, and vehicle frame lock

Abstract: A collapsible electric vehicle, a vehicle frame for the same, and a vehicle frame lock. The collapsible electric vehicle comprises a front vehicle member (10), a vehicle frame (20), a seat (30), a power supply (40), a set of wheels (50), and a drive motor. The front vehicle member (10) is pivotably connected to the vehicle frame (20). The seat (30) is disposed at the vehicle frame (20). The wheels (50) are disposed at the front vehicle member (10) and the vehicle frame (20), respectively. The power supply (40) is electrically connected to the drive motor. The drive motor is connected to at least one of the wheels, so as to drive the wheel to rotate. The collapsible electric vehicle has an expanded state and a collapsed state, wherein when the collapsible electric vehicle is in the expanded state, a first support frame (22) of the vehicle frame (20) is expanded and maintained upright, so as to support the seat (30) to be at a suitable position, and the front vehicle member (10) is expanded to be positioned apart from the vehicle frame (20); when the collapsible electric vehicle is in the collapsed state, the first support frame (22) of the vehicle frame (20) is collapsed to a frame main body (10), and the front vehicle member (10) is collapsed to the first support frame (22).

Crawler-type small transport vehicle for construction site

Abstract: The invention discloses a crawler-type small transport vehicle for a construction site and belongs to the transport vehicle filed. A vehicle frame is included. A top of the vehicle frame is fixedly connected with a mounting frame; and a driving wheel and a bearing wheel are arranged on the vehicle frame, bearings are fixedly connected to two sides of the top of the inner wall of the mounting frame, a screw rod is arranged between the two bearings, a vehicle hopper is slidably connected to the top of the mounting frame, a threaded sleeve is fixedly connected to the left side of the bottom of the vehicle hopper, and the threaded sleeve is matched with the screw rod. In the invention, the transport vehicle can realize upward movement and downward placement of the vehicle hopper in an advancing or reversing process; the structure of the transport vehicle is simple; a power source for additionally driving the vehicle hopper is reduced, and cost of a transport vehicle body is reduced; and abucket can be put down and put away in upward moving and descending processes of the vehicle hopper, building materials can be directly shoveled into the vehicle hopper through the bucket, and labor consumption of workers during loading of the building materials is reduced.

Vehicle state judgment method and device and computer storage medium

Abstract: The invention discloses a vehicle state judgment method and device, and a computer storage medium. The vehicle state judgment method comprises the following steps: continuously capturing a preset number of frames of monitoring video images to form a target monitoring image group; obtaining a category flag bit, a vehicle frame and a license plate frame of the target monitoring image group through atarget detection model; acquiring a vehicle displacement vector based on the target monitoring image group, and acquiring a displacement flag bit based on the vehicle displacement vector; when the category flag bit is consistent with the displacement flag bit, outputting the driving state of a target vehicle; calculating a license plate offset vector based on the vehicle frame and the license plate frame of the target monitoring image group, and outputting the driving direction of the target vehicle according to the license plate offset vector; and obtaining the vehicle state of the target vehicle based on the driving state and the driving direction of the target vehicle. By means of the method, the state of an entering or exiting vehicle can be rapidly and accurately judged through the flag bit information, the vehicle displacement vector and the license plate deviation vector.

Novel power-assisted vehicle frame

Abstract: A novel power-assisted vehicle frame, comprising a vehicle frame body (1). The vehicle frame body (1) is formed by means of separately connecting a vehicle frame rear triangle (11), a vehicle frame middle tube (14), a vehicle frame bottom bracket (25), a vehicle frame upper tube (13) and a vehicle frame lower tube (2) and a vehicle frame head tube (12). The vehicle frame rear triangle (11) is connected to the vehicle frame middle tube (14) and the vehicle frame bottom bracket (25). One end of the vehicle frame upper tube (13) is connected to the vehicle frame middle tube (14). One end of the vehicle frame lower tube (2) is connected to the vehicle frame bottom bracket (25), and the left side of an upper part of the vehicle frame lower tube (2) is provided with a battery pack charging hole (8). The vehicle frame lower tube (2) is separately internally provided with a battery pack (21) and a controller (22). An outer surface of the battery pack (21) is provided with a concave groove (100), an inner wall of the vehicle frame lower tube (2) is provided with a convex groove (99), and the concave groove (100) is connected to the convex groove (99). The other ends of the vehicle frame upper tube (13) and the vehicle frame lower tube (2) are each connected to the head tube (12). The head tube (12) is provided with an opening (3), the opening (3) is connected to a head tube cover (4), and the head tube cover (4) is provided with a round hole (41). The present power-assisted vehicle frame effectively solves the problems in which the wires and batteries in existing power-assisted vehicle frames are easily damaged by long-term exposure, and the batteries and wires are difficult to disassemble and affect charging.

Vehicle chassis structure and vehicle with same

Abstract: The invention relates to the technical field of vehicles. The invention provides a vehicle chassis structure which comprises a vehicle frame and suspension systems. A containing space is formed in thevehicle frame, mounting frames used for mounting the suspension systems are arranged on the two sides of the vehicle frame respectively, the suspension systems are connected to the two sides of the vehicle frame respectively, a hoisting support set is arranged in the vehicle frame, and the vehicle frame can be connected with a vehicle body. The invention further provides a vehicle comprising thevehicle chassis structure. Compared with the prior art, the vehicle chassis structure has the beneficial effects that the vehicle frame, the suspension systems and other subsystems are integrated together to form the chassis structure; the vehicle chassis structure belongs to a modular chassis structure, and when new products of the same series are developed, the vehicle chassis structure can quickly complete the change of the number of vehicle shafts or the adjustment of chassis parameters, so that the development period of the new products is greatly shortened, the research and development cost is reduced, and the economic benefits are improved.

Lifting type frame and air transportation vehicle

Abstract: The invention relates to a lifting type frame and an air transportation vehicle. The air transportation vehicle comprises a lifting type vehicle frame, the frame comprises an upper frame, a lower frame, lifting assemblies and a locking device; the upper frame and the lower frame are connected through the lifting assemblies; at least two sets of lifting assemblies are oppositely arranged in the first direction, the lower frame and the upper frame can get close to each other or be separated from each other by operating the at least two sets of lifting assemblies, the locking device is arranged on the lower frame, and when the lower frame and the upper frame get close to each other, the lower frame and the upper frame can be locked with each other by operating the locking device. According tothe air transportation vehicle provided by the invention, the assembling connection of the air transportation vehicle and a container can be realized through self equipment, the operation is simple,the automation degree is high, and the practicability is very good.

Frame front end structure and electric vehicle

Abstract: The invention relates to a vehicle frame front end structure and an electric vehicle. The vehicle frame front end structure comprises longitudinal beams arranged on the two sides in a vehicle frame, afront shock absorber tower assembly, a water tank mounting assembly, a front cross beam, a front anti-collision beam assembly, a front suspension mounting assembly, a front motor mounting assembly and a suspension assembly. According to the frame front end structure, two motor mounting brackets are arranged on the longitudinal beams on the two sides, and then the motor can be mounted on the motormounting bracket, so the motor shell plays a role of a cross beam, part of cross beams in the prior art can be omitted, the overall weight of the vehicle frame can be reduced, light weight design isfacilitated, meanwhile, it is guaranteed that the vehicle frame has good structural strength and rigidity, and then the front end structure of the vehicle frame has a good using effect.

Convertable two-wheeled vehicle

Abstract: The invention discloses a convertable two-wheeled vehicle. One in wheels can be turned by means of a handle. A vehicle frame is provided with two accommodating parts and is provided with a pedal crankshaft unit. The pedal crankshaft unit is provided with a fixing element. The fixing element can be connected with two accommodating parts on the vehicle frame in a shape matching manner. The convertable two-wheeled vehicle can be converted from a patrol vehicle to a bicycle without a tool, and the convertable two-wheeled vehicle is characterized in that the pedal crankshaft unit is hooked in the accommodating part of the vehicle frame and is locked.

Unmanned aerial vehicle and aerial vehicle frame thereof

Abstract: An unmanned aerial vehicle (100) and aerial vehicle frame (10) thereof. The aerial vehicle frame (10) comprises a central body, foot supports (1), and multiple aerial vehicle arms. The central body comprises a bottom housing (2), a mounting position (21) is provided on the bottom housing (2), and the mounting position (21) is provided with a fitting portion (211); an end portion of the foot support (1) close to the bottom housing (2) is a connection end (11), and a clipping portion (111) is provided at the connection end (11), so that the foot support (1) is in clipping connection with the fitting portion (211) of the mounting position (21) of the bottom housing (2), and the foot support (1) is detachably and fixedly connected to the bottom housing (2). According to use requirements of the unmanned aerial vehicle (100), the foot support (1) can be detached from the bottom housing (2), so that a function extension module is mounted on the aerial vehicle frame (10), thereby expanding the use range of the unmanned aerial vehicle (100).

Vehicle having a frame provided with a supporting structure for auxiliary units, in particular gas tanks or electric batteries

Abstract: A light duty vehicle comprises a vehicle frame (3), including a pair of longitudinal beams (4) connected to each other by a plurality of cross-members (5) and a cabin frame (2), comprising a pair of longitudinal beams (7) rigidly connected to the front ends of the longitudinal beams (4) of the vehicle frame (3) The vehicle further comprises a supporting structure (8) for auxiliary units (9), such as gaseous fuel tanks or electric batteries, this supporting structure being carried by the vehicle frame (3) The supporting structure (8) for the auxiliary units (9) comprises an auxiliary frame (80) which extends between the longitudinal beams (4) of the vehicle frame (3) and has at least two connection plates (P) arranged in vertical planes parallel to the longitudinal direction of the vehicle frame (3) and which are in contact with the mutually facing inner lateral walls (4D) of the longitudinal beams (4) of the vehicle frame (3) and are rigidly connected to these longitudinal beams (4) The auxiliary frame (80) fulfills a structural function equivalent to the structural function of one or more cross-members (5) at an area of the vehicle frame (3) where the cross-members (5) are omitted

A motor vehicle floor assembly

Abstract: This disclosure relates to a motor vehicle floor assembly, and further relates to a method of constructing a motor vehicle which reduces the number of fixing points (i.e., fastener attachment points) on a vehicle chassis. An example floor assembly includes a vehicle frame, a floor panel, and at least one underbody vehicle component forming a subassembly with the floor panel installed to an underside of the vehicle frame. The floor panel comprises at least one recess configured to receive a portion of the vehicle frame.

Vehicle lock control system, vehicle and vehicle lock control method

Abstract: The invention relates to the technical field of vehicle locks, and especially relates to a vehicle lock control system, a vehicle and a vehicle lock control method. The vehicle lock control system comprises a controller and a vehicle wheel state detection unit, wherein the controller is used for controlling the state of a vehicle lock; the vehicle wheel state detection unit is used for detecting the rotation state of vehicle wheels; and after the controller receives a vehicle locking instruction, the vehicle wheel state detection unit detects the state of the vehicle wheels and sends a detection result to the controller, and the controller judges whether the vehicle locking instruction is executed or not on the basis of the detection result. The vehicle comprises a vehicle frame, the vehicle wheels and the vehicle lock. In the vehicle lock control method, vehicle locking steps comprise S1, receiving the vehicle locking instruction; S2, obtaining the rotation state information of the vehicle wheels; and S3, judging whether the vehicle locking instruction is executed or not on the basis of the rotation state information of the vehicle wheels. According to the vehicle lock control system, the vehicle and the vehicle lock control method, no case of sudden stop of the vehicle is ensured, the occurrence rate of accidents is reduced, and casualties caused by the sudden stop of the vehicle are avoided.

Manpower-assisted walking electric vehicle

Abstract: The invention discloses a manpower-assisted walking electric vehicle, solves the problem that a manpower-assisted walking mechanism is easy to damage due to low use frequency and erosion of rainwateron an existing electric vehicle, and adopts the technical scheme that the manpower-assisted walking electric vehicle comprises a vehicle frame, and the front side of the vehicle frame is connected with a faucet pipe; a front wheel is rotatably arranged at the lower end of the faucet pipe; a rear wheel is connected to the rear side of the vehicle frame through a rear bottom fork; a motor is arranged at the position of a hub of the rear wheel; and a storage battery and pedals are further arranged on the vehicle frame, and the storage battery is electrically connected with the motor through a controller. The manpower-assisted walking electric vehicle is characterized in that an electric generator is arranged on the vehicle frame of the electric vehicle; the electric generator comprises a rotor and a stator which are arranged in a shell; the shell is fixed to the vehicle frame; the rotor is arranged on a rotor shaft; the two ends of the rotor shaft extend out of the shell; the pedals are connected and fixed to the ends of the rotor shaft; and the electric generator is electrically connected with the motor.