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 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

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

A vehicle drive device (D) includes two independent systems provided for two driving wheels, respectively. Each system includes a motor-generator (MGl,- MGr), J an output member, a drive transmission system (Tl, Tr) which connects the motor-generator (MGl, MGr) and the output member to each other so that driving force is transmitted, and a case integrally accommodating the rotating electrical machines (MGl, MGr), the output members, and the drive transmission systems (Tl, Tr) of the two systems. The motor-generator (MGl, MGr), the output member, and a counter deceleration mechanism (131, 13r) included in the drive transmission system (Tl, Tr) of each system are provided so that their respective rotation axes are parallel to each other, and are positioned so as to overlap each other in the rotation axis direction. The rotating electrical machine (MGl, MGr) of each system is provided with an output portion located on one side of the motor-generator (MGl, MGr) which is distal from the corresponding driving wheel in the rotation axis direction of the motor-generator (MGl, MGr).

Vehicle drive device

A control method of a hybrid vehicle that includes engages a second clutch and in response outputs a torque through an output shaft that is connected to the second carrier via torque supplied from an engine and a first and second motor-generators. Accordingly, the speed of the engine is controlled via the first motor-generator, and a torque of an output shaft is control via the second motor-generator. Accordingly, the second motor-generator is used to control an operating point of the engine so that a base motor torque is effectively set.

Control method of 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

Masakazu Hayata

Papers

Hybrid drive device