The invention provides a big data acquisition and processing system and an electric vehicle endurance estimation method based on the same; the system includes a vehicle-mounted sensor, a GPS positioning system, a road information perception system, a cloud data receiving system, a data transmission processing system and an online computing system. Real-time road, traffic, weather and other information are obtained from a cloud server, and then a future driving state of an electric vehicle is forecasted based on the data. According to the vehicle real-time data under an actual driving state, a vehicle dynamic model and a battery model obtained from calculation are more accurate than a traditional vehicle dynamic model obtained based on a physical equation in an electric vehicle driving process. The estimation method can improve the estimation accuracy of the remaining endurance mileage of the networking pure electric vehicle to a great extent. In addition, according to the real-time data obtained from the cloud, a vehicle use strategy is better planned, and the control strategy of the electric vehicle is optimized, so as to improve the service life of the electric vehicle.

Big data acquisition and processing system and electric vehicle endurance estimation method based on same

The invention discloses an inductive non-contact charging device with a precise centering function for an electric automobile. The inductive non-contact charging device comprises an electric energy transmitting terminal and an electric energy receiving terminal. The electric energy transmitting terminal enables an electric energy transmitting coil to generate a high-frequency alternating magnetic field through a PWM rectifying circuit and a high-frequency inverter circuit and sends the energy to an electric energy receiving coil, arranged on the automobile, in the electric energy receiving terminal. The power battery is charged through the rectifying circuit and a step-down circuit. Meanwhile, after center position information of the electric energy transmitting coil and center position information of the electric energy receiving coil are acquired and compared, the position of the electric energy transmitting coil is adjusted and centering between the electric energy transmitting coil and the electric energy receiving coil is achieved. The inductive non-contact charging device has the advantages that electric energy transmitting can be conducted efficiently, meanwhile, precise centering of the electric energy transmission coils at the two sides is conducted after the electric automobile stops completely by the adoption of a mechanical transmission device, and electric energy transmission efficiency is further improved.

Inductive non-contact charging device with precise centering function for electric automobile

The invention discloses an estimation method for endurance mileage of an electric vehicle, which comprises the following steps: 1, collecting battery electric quantity, consumed in the corresponding path, of the electric vehicle, and counting in advance to acquire data of the battery electric quantity averagely consumed by each path; 2, acquiring a running path from the current position to the destination position through a navigation system, and acquiring data of the battery electric quantity needing to be consumed according to the data of the battery electric quantity averagely consumed by each path; 3, comparing the data of the current battery electric quantity of the electric vehicle with the data of the battery electric quantity needing to be consumed; and 4, under the condition that the data of the current battery electric quantity of the electric vehicle is greater than the data of the battery electric quantity needing to be consumed, enabling the electric vehicle to prompt the data of the surplus electric quantity after arrival; under the condition that the data of the current battery electric quantity of the electric vehicle is less than the data of the battery electric quantity needing to be consumed, enabling the electric vehicle to prompt the position information that the electric vehicle can arrive in the running path; and under the condition that the data of the current battery electric quantity of the electric vehicle is equal to the data of the battery electric quantity needing to be consumed, enabling the electric vehicle to prompt that the surplus electric quantity is 0 after arrival The estimation method overcomes the problem of very poor accuracy of an endurance mileage estimation result in the prior art and realizes accurate prediction of the endurance mileage

Estimation method for endurance mileage of electric vehicle

The invention discloses an electric vehicle wireless charging transmitting and receiving automatic alignment system. The electric vehicle wireless charging transmitting and receiving automatic alignment system comprises a wireless receiving device and a wireless transmitting device, a communication connection being established between the wireless receiving device and the wireless transmitting device. The automatic alignment system further comprises a radio positioning device and a motor positioning driving device; the motor positioning driving device is arranged at the bottom of an electric vehicle; the wireless receiving device is arranged on the motor positioning driving device, and can move leftwards and rightwards under the driving of the motor positioning driving device; a communication connection is established between the radio positioning device and the motor positioning driving device; the radio positioning device includes a radio range-measuring circuit and a radio answering circuit; a communication connection is established between the radio range-measuring circuit and the radio answering circuit; after the radio range-measuring circuit transmits range-measuring radio signals, the radio answering circuit transmits response signals; the radio range-measuring circuit calculates position difference according to time length for receiving the response signals; and therefore, the motor positioning driving device can be controlled to move according to the position difference.

Electrical vehicle wireless charging transmitting and receiving automatic alignment system

The invention discloses an electric vehicle charging station selection method based on charging reservation. The electric vehicle charging station selection method based on the charging reservation includes steps that 1) acquiring road information in an electric vehicle route, wherein the road information comprises distance, speed and the like; 2) judging whether the vehicle has already made a reservation, if so, turning to the step 7); 3) calculating to judge whether the SOC of the electric vehicle can meet the driving demand of the journey, if so, turning to the step 1), otherwise, entering the step 4); 4) finding passing charging stations, and calculating the time for arriving at each charging station, the shortest waiting time and the like of each charging station; 5) judging whether the time when the vehicle arrives at the charging station surpasses a certain limit range, if so, calculating the charging station selection possibility of the vehicle, and judging; 6) selecting according to said information, and enabling an electric vehicle charging selection system to send the selection result to a charging station management system; 7) judging whether the vehicle has arrived at the reserved charging station, if so, waiting for charging or charging directly; otherwise, continuing to run till arriving at the charging station.

Electric vehicle charging station selection method based on charging reservation

The invention discloses an induction type non-contact charging locating aligning device which comprises a rough aligning device, a vehicle-mounted electric energy receiving device, a ground electric energy emitting device, an ultrasonic wave accurate positioning system and an ultrasonic wave locating processing module. The rough aligning device comprises a front vehicle-mounted night vision camera, a rear vehicle-mounted night vision camera, a rearview mirror type display screen, a front ground identifier and a rear ground identifier. The ultrasonic wave accurate positioning system comprises an ultrasonic wave emitting sensor, an ultrasonic wave receiving sensor A, an ultrasonic wave receiving sensor B, an ultrasonic wave receiving sensor C, an ultrasonic wave receiving sensor D, a stepping motor A, a stepping motor B, a moving platform and a temperature sensor. The ultrasonic wave locating processing module comprises a vehicle-mounted processing module and a ground processing module. An induction type non-contact charging locating method comprises the steps that firstly, a driver completes rough location through images; secondly, an ultrasonic wave locating system is started; thirdly, the moving platform is aligned on the basis of position calculation.

Induction type non-contact charging locating aligning device and locating method thereof

The invention discloses a BEV driving range estimation device based on remote data transmission. The device comprises a vehicular navigator, a control unit module, a GPRS communication module, a SOC computation module, and an information center. The vehicle navigator performs GPS positioning on a vehicle to acquire location information of the vehicle. A driver enters a destination into the vehicular navigator which sets a driving line. The control unit module stores vehicle information, including vehicle type, vehicle parameters and motor parameters. The control unit module divides the driving line set by the vehicular navigator into a plurality of segments and transmits a signal of extracting reference kinematic fragments to the information center through the GPRS communication module. The control unit module receives the reference kinematic fragments, then computes power consumption delta C of driving on the segments, and outputs the data to the SOC computing module which estimates current driving range of the vehicle, and an estimated value of the driving range is displayed on a display.

BEV driving range estimation device and method based on remote data transmission

The invention discloses an image acquisition system based on remote data transmission. The image acquisition system includes a control unit module, a GPRS data transmission module, an image acquisition module, a collision sensing module and an information center; the GPRS module is connected with a signal output end of the control unit; a signal output end of the image acquisition module is connected with an image signal input end of the control unit; and acquired images are transmitted to the information center in a real-time manner through the GPRS module. With the image acquisition system based on remote data transmission of the invention adopted, when a vehicle has an accident, data and on-site picture information when the accident occurs can be timely transmitted; an automatic operating mode and a manual operating mode can be used flexibly; independent handling of parties involved in urban traffic accidents can be realized; and electronic automatic handling of serious traffic accidents in unmanned areas can be also realized; and therefore, fast handling of accidents and smooth traffic in urban areas as well as timely response of first-aid departments and life safety of drivers can be better ensured.

Zhou Jianwen

Papers

Induction type non-contact charging locating aligning device and locating method thereof

BEV driving range estimation device and method based on remote data transmission

Image acquisition system based on remote data transmission