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A motor torque control method and device

A technology of motor torque and control method, which is applied in the directions of control drive, transportation and packaging, power management, etc. It can solve the problems that the torque command cannot accurately reflect the driver's operation intention and the driving state of the vehicle is uncontrollable, so as to reduce the uncontrollable situation. Effect of Incidence Rate, Accurate Operational Intent

Active Publication Date: 2019-03-08
WEICHAI POWER CO LTD
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Problems solved by technology

[0004] In view of this, the present invention proposes a motor torque control method and device to solve the technical problem in the prior art that the torque command output by the vehicle controller cannot accurately reflect the driver's operation intention, which in turn leads to the uncontrollable driving state of the vehicle

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  • A motor torque control method and device
  • A motor torque control method and device
  • A motor torque control method and device

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Embodiment Construction

[0054] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0055] This embodiment provides a motor torque control method, see figure 1 As shown, the method includes:

[0056] Step S11: Acquiring the accelerator pedal opening signal;

[0057] The displacement sensor installed on the accelerator pedal can collect the accelerator pedal opening in real time, and the vehicle controller of the electric vehicle obtains the accelerator pedal opening signal from the displacement sensor. The accelerator pedal opening signal o...

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Abstract

The present invention provides a motor torque control method and apparatus. The motor torque control method includes the following steps that: accelerator pedal opening degree signals are acquired; a torque corresponding to the accelerator pedal opening signals is obtained according to an accelerator pedal control strategy; and a torque command is transmitted to a motor controller, so that a motor can be controlled to output the torque corresponding to the accelerator pedal opening signals. The accelerator pedal control strategy is one control strategy selected from hard pedal control strategies and soft pedal control strategies based on the driving behavior data of a driver in a time period. The driving habit of the driver can be obtained through analysis according to the driving behavior data of the driver in the time period, so that one control strategy corresponding to the driving habit of the driver is selected from the hard pedal control strategies and the soft pedal control strategies, and therefore, the torque command outputted by a vehicle control unit can reflect the operational intent of the driver more accurately, and the occurrence rate of uncontrollable situations in vehicle driving can be decreased.

Description

technical field [0001] The invention relates to the field of electric vehicles, and more specifically, to a motor torque control method and device. Background technique [0002] The accelerator pedal of a traditional car controls the opening of the throttle valve, thereby controlling the power output of the engine. The accelerator pedal signal of an electric vehicle is one of the important analog signal inputs in the vehicle, which reflects the driver's manipulation intention. When the driver steps on the accelerator pedal of the electric vehicle, the vehicle controller acquires the opening of the accelerator pedal through the displacement sensor installed on the accelerator pedal, and obtains the corresponding value according to the preset hard pedal control strategy, linear pedal control strategy or soft pedal control strategy. The torque corresponding to the opening of the accelerator pedal is sent to the corresponding control signal to control the motor to output the co...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L15/20
CPCB60L15/20Y02T10/72
Inventor 李可敬王宏宇徐亚美刘晓辉王德军李静静
Owner WEICHAI POWER CO LTD
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