Vehicle torque filter control method, system and vehicle
A filtering control and control system technology, which is applied in the direction of control drive, vehicle components, electric vehicles, etc., can solve the problems affecting driver comfort, affecting the service life of gears, abnormal noise of gears, etc., to improve safety and comfort, Improve service life and reduce abnormal noise
Active Publication Date: 2020-01-03
GREAT WALL MOTOR CO LTD
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Problems solved by technology
[0004] The current electric vehicles will greatly reduce the drivability and economy of the vehicle during rapid acceleration and deceleration, and there will be abnormal noise of gears when the motor torque crosses zero, which not only affects the comfort of the driver, but also affects the use of gears life
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[0031] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0032] The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0033] figure 1 is a flow chart of a torque filter control method for a vehicle according to an embodiment of the present invention. figure 2 is a detailed flow chart of a torque filter control method for a vehicle according to an embodiment of the present invention. It should be noted that, in a specific implementation process, the vehicle mainly involved in this method is, for example, a pure electric vehicle. In the process of torque filtering, three controllers are mainly involved: the vehicle controller (VCU, vehicle Control Unit), the motor controller (MCU, Motor Control Unit), and the body stability control system (ESP, Electronic Stability Program). Among them, The vehicle co...
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The invention provides a vehicle torque filtering control method and system, and a vehicle. The vehicle torque filtering control method comprises the following steps that a required torque and a current energy recovery torque of the vehicle are obtained; the required torque is adjusted according to the energy recovery torque; the adjusted required torque is limited according to a limiting torque corresponding to the vehicle state; whether a torque interference request issued by a vehicle body stability control system exists or not is judged; and if the torque interference request exists, an interference torque corresponding to the torque interference request serves as the final output torque of the vehicle. According to the vehicle torque filtering control method, specified control can beconducted on vehicle torque filtering, and the safety and comfort of the vehicle are improved.
Description
technical field [0001] The invention relates to the technical field of automobiles, in particular to a vehicle torque filter control method, system and vehicle. Background technique [0002] In the face of increasingly serious environmental pollution and energy crisis, the energy-saving and non-polluting features of new energy vehicles have become the direction of future automobile development. Electric vehicles can not only charge electric vehicles during the evening electricity valley, but also recover the braking energy and sliding energy of the vehicle to increase the mileage of the vehicle. [0003] In electric vehicles, torque is the core of control. The vehicle controller receives the accelerator pedal signal and converts the pedal opening into the driver's torque demand. After driving filter processing, it sends it to the motor controller through the CAN bus for torque response. The design of torque filter in vehicle control directly affects the safety and comfort o...
Claims
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IPC IPC(8): B60L15/20B60W30/20
CPCB60L15/20B60W30/20Y02T10/72
Inventor 高蓬郭清锋李刚李雷李凯
Owner GREAT WALL MOTOR CO LTD