AT (automatic transmission)-based pure electric automobile brake energy recovery control system and method thereof
A braking energy recovery, pure electric vehicle technology, applied in the direction of electric braking system, electric vehicle, electric vehicle charging technology, etc., can solve the problem of lack of research and products of AT automatic transmission braking energy recovery
Inactive Publication Date: 2011-08-31
BEIJING ELECTRIC VEHICLE
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Problems solved by technology
However, there is still a lack of relevant research and products for the braking energy recovery of AT automatic transmissions.
Method used
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[0024] Such as figure 1 As shown, the AT-based pure electric vehicle braking energy recovery system includes on-board battery, motor, AT automatic transmission, vehicle speed sensor, acceleration sensor, vehicle controller VCU, battery management system BMS, motor controller MCU, AT automatic Transmission controller TCU, brake anti-lock braking system ABS and mechanical brake vacuum booster pump. The on-board battery supplies power to the motor, and the motor is mechanically connected to the AT automatic transmission. Vehicle controller VCU, battery management system BMS, motor controller MCU, gearbox controller TCU, brake anti-lock braking system ABS, mechanical brake vacuum booster pump, vehicle speed sensor, acceleration sensor for information communication and command sending through CAN network .
[0025] The vehicle controller is used for vehicle energy management and communication between various controller modules; the AT automatic transmission controller is used for...
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The invention discloses an AT (automatic transmission)-based pure electric automobile brake energy recovery control system and a method thereof. The system comprises a vehicle-mounted storage battery, a motor, an AT, a whole automobile controller, a motor controller, an AT controller, and the like. The vehicle-mounted storage battery is used for providing power for the motor, and the motor is mechanically connected with the AT. A battery management system, a motor controller, the AT controller, an antilock brake system, a mechanical brake vacuum pump, an automobile speed sensor and an accelerated speed sensor perform the information communication and sends an instruction by a CAN (controller area network) and the whole automobile controller. By combining the motor with the AT, the invention provides a brake energy recovery control method of an AT system and mainly provides a control method of the AT when an electric automobile is braked and a brake recovery control method. The invention provides the theoretical foundation for the brake energy recovery control method of an electric drive system of the AT matched with the motor.
Description
technical field [0001] The invention relates to an AT-based pure electric vehicle braking energy recovery control system and method. Background technique [0002] Foreign pure electric vehicle solutions mostly focus on single-stage deceleration. The low-speed and high-torque of the motor meets the acceleration and climbing power requirements, and the high speed of the motor meets the maximum speed requirements, thus taking into account the balance between the maximum speed and the maximum gradeability. Contradictions, however, due to gaps in manufacturing technology of domestic motors, it is difficult to reach a maximum speed of more than 10,000 rpm, so it is difficult to take into account the contradiction in power performance with a single-stage reduction ratio. In the development of pure electric vehicles, there are few developments of electric drive systems based on AT (Automatic Transmission, referring to hydraulic automatic transmission devices). Not very suitable for...
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IPC IPC(8): B60L7/10B60W10/18B60W10/10B60W10/30B60W40/10B60W40/08
CPCY02T90/16
Inventor 曲婧瑶朱波李奇詹文章魏跃远肖胜然
Owner BEIJING ELECTRIC VEHICLE