A vehicle control system which can ensure high reliability, real-time processing, and expandability with a simplified ECU configuration and a low cost by backing up an error through coordination in the entire system without increasing a degree of redundancy of individual controllers beyond the least necessary level. The vehicle control system comprises a sensor controller for taking in sensor signals indicating a status variable of a vehicle and an operation amount applied from a driver, a command controller for generating a control target value based on the sensor signals taken in by the sensor controller, and an actuator controller for receiving the control target value from the command controller and operating an actuator to control the vehicle, those three controller being interconnected via a network. The actuator controller includes a control target value generating unit for generating a control target value based on the sensor signals taken in by the sensor controller and received by the actuator controller via the network when the control target value generated by the command controller is abnormal, and controls the actuator in accordance with the control target value generated by the control target value generating unit.

Vehicle Control System

A double clutch transmission is described that ideally changes torque received from an engine and a motor by providing an optimal layout in power transmission scheme and motor location. Such a double clutch transmission is optimally adapted to a hybrid electric vehicle, and an optimal operation method for such a double clutch transmission is also provided, overcoming inefficiency in application of a conventional CVT to an HEV.

Double clutch transmission for a hybrid electric vehicle and method for operating the same

A power transmission system of a hybrid electric vehicle may include an input shaft, an output shaft, a first planetary gear set including a first rotation element directly connected to a first motor/generator, a second rotation element connected to the output shaft through an externally-meshed gear and a third rotation element directly connected to the input shaft, a second planetary gear set including a fourth rotation element directly connected to a second motor/generator, a fifth rotation element connected to the output shaft through an externally-meshed gear and a sixth rotation element selectively connected to a transmission housing and selectively connected to the first rotation element, transfer gears forming the externally-meshed gears, and frictional elements selectively connecting two rotation elements of the second planetary gear set, selectively connecting the first rotation element to the sixth rotation element, or selectively connecting the sixth rotation element to the transmission housing

Power transmission system of hybrid electric vehicle

Required is a hybrid drive device such that the outer diameter of a case is decreased and the axial length of the hybrid drive device is decreased by an ingenious arrangement of a fastening bolt for securing an intermediate support member to the case The case includes an intermediate wall extending from a peripheral wall to the inside in a radial direction of a coil end portion of a rotating electrical machine The intermediate support member includes a bearing support portion, a boss portion, and a flange portion extending outward in the radial direction An outer peripheral surface of the boss portion abuts on an end surface of the intermediate wall on the inside in the radial direction The flange portion extends along the radial direction on the rotating electrical machine side of the intermediate wall, with an outer peripheral surface of the flange portion disposed on the inside in the radial direction of the coil end portion The fastening bolt is inserted into the flange portion and the intermediate wall from the rotating electrical machine side, with a head portion of the fastening bolt overlapping with the coil end portion as viewed in the radial direction

Hybrid drive device

A transmission for a hybrid vehicle is provided to implement one or more electric vehicle modes, two or more power split modes, and a plurality of fixed-gear ratio modes that can improve driving performance and fuel efficiency.

Transmission for hybrid vehicle

PROBLEM TO BE SOLVED: To provide a hybrid drive device that not only effectively strikes balance between engine start and drive power assistance by a motor but also improves motor mountabilitySOLUTION: The hybrid drive device for a vehicle includes an engine 11, an input shaft 13 connected to the engine through a clutch 17, an output shaft 14 connected to a drive wheel, a gear speed change mechanism 15 having a gear comprising a pair of gears with a plurality of steps which transmit the rotation of the input shaft driven by the engine to the output shaft, and a motor 12 separably connected to either the input and output shaft In the hybrid drive device for the vehicle, not only the motor is connected to a pair of gears of intermediate speed (third speed 3rd) of the gear but also a pair of gears disposed at the outermost side of the pair of the gears with a plurality of steps comprising the gear speed change mechanism are a pair of the gears for providing the intermediate speed

PROBLEM TO BE SOLVED: To ensure hybrid travel and starting, ensure power generation and engine starting and prevent reduction in transmission efficiency via a simple structure and a small size. SOLUTION: As a transmission device comprising an input shaft 2 into which torque from an engine is input via a clutch 1, and a gear train 3 and an output shaft 4 for torque transmission, a transmission device with a power source assembles the input shaft 2 from two input shafts 21 and 22; has two clutches 11 and 12 each comprising one element 111, 121 in communication with the engine, and the other element 112, 122 in communication with the two input shafts 21 and 22; and has a motor 5 serving as a power source in communication with the other element 112 of either 11 of the two clutches. COPYRIGHT: (C)2003,JPO

Transmission device with power source

PROBLEM TO BE SOLVED: To provide a power transmission device for a hybrid vehicle adopting an electric motor with a minimum physique, reducing size, weight, cost, and fuel consumption of the vehicle, and providing comfortable vehicular traveling. SOLUTION: This power transmission device for the hybrid vehicle is provided with a gear type transmission 2 switchable to a plurality of transmission ranges, a clutch 3 disposed between the gear type transmission 2 and an internal combustion engine 1 and switching between transmission and cutoff of power from the internal combustion engine 1 to an input part 24 of the gear type transmission 2, the electric motor 4 connected inside a power transmission path between an output side 24 of the clutch 3 and output parts 31 and 32 of the gear type transmission 2 and capable of transmitting power to the output parts 31 and 32, and a control means 5 automatically controlling shift operation of the gear type transmission 2 and switching operation of the clutch 3. A rotation ratio between the output parts 31 and 32 of the gear type transmission 2 and the electric motor 4 can be switched in accordance with a transmission range of the gear type transmission 2.

Power transmission device for hybrid vehicle

PROBLEM TO BE SOLVED: To provide an oil pressure supply device capable of supplying oil pressure capable of engaging with a lock-up clutch during stop by low power consumption without enlarging an electric oil pump for supplying auxiliary oil pressure. SOLUTION: The oil pressure supply device 10 supplies auxiliary oil pressure to driving device 20 for a vehicle. The driving device 20 has a torque converter 13 that has the lock-up clutch 13a and transmits a drive force from a power source to the wheel side, a gear shift mechanism 15, and a mechanical oil pump 17 driven by the power source. The oil pressure supply device 10 comprises the electric oil pump 1 that is arranged in parallel with the mechanical method oil pump 17 and driven independently of the power source, a first oil passage 3 for making a delivery port 1a of the electric oil pump 1 communicate with the lock-up clutch 13a, a second oil passage 5 that is provided with an oil pressure restricting means 5a and makes the delivery port 1a of the electric oil pump 1 communicate with the mechanical method oil pump 17, and a first check valve 7 and the second check valve 9 disposed in the first oil passage 3 and second oil passage 5, respectively. COPYRIGHT: (C)2008,JPO&INPIT

Oil pressure supply device and driving device for vehicle

PROBLEM TO BE SOLVED: To provide a power transmission system for a hybrid vehicle adopting a possible smaller electric motor to allow miniaturization, weight saving, and reduction of cost of the vehicle, and good mileage, and allowing comfortable vehicle traveling. SOLUTION: This power transmission system for the hybrid vehicle has: a gear type stepped transmission 2 allowing a changeover to a plurality of shift steps; a clutch 3 disposed between the gear type stepped transmission 2 and an internal combustion engine 1, changing over shutoff or transmission of power from the internal combustion engine 1 to an input part 24 of the gear type stepped transmission 2; the electric motor 4 connected into a power transmission route between an output side 24 of the clutch 3 and an output part 31, 32 of the gear type stepped transmission 2, capable of transmitting power to the output part 31, 32; and a control means 5 automatically controlling changeover operation of the clutch 3 and speed change operation of the gear type stepped transmission 2. A rotation ratio between the output part 31, 32 of the gear type stepped transmission 2 and the electric motor 4 is changed over according to the shift step of the gear type stepped transmission 2. COPYRIGHT: (C)2009,JPO&INPIT

Takahiro Midori

Papers

Hybrid drive device

Transmission device with power source

Power transmission device for hybrid vehicle

Oil pressure supply device and driving device for vehicle

Power transmission system for hybrid vehicle