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Motor output torque control method and device

A technology of output torque and control method, applied in the field of vehicles, can solve problems such as energy waste and adverse vehicle driving safety, and achieve the effect of prolonging life and reducing output.

Active Publication Date: 2017-06-09
BEIJING ELECTRIC VEHICLE
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0002] When the vehicle is driving on a downhill road, the speed of the vehicle will become faster and faster. Usually, the driver will control the speed of the vehicle by stepping on the brake pedal. In this state, the output torque of the motor does not change, and That is, when the driver steps on the brake pedal, the actual torque output by the motor exceeds the required torque of the motor, which causes a waste of energy and is very detrimental to the driving safety of the vehicle.

Method used

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  • Motor output torque control method and device
  • Motor output torque control method and device

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Embodiment Construction

[0050] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments. In the following description, specific details, such as specific configurations and components, are provided only to assist in a comprehensive understanding of the embodiments of the present invention. Accordingly, those of ordinary skill in the art should recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

[0051] refer to figure 1 , the first embodiment of the present invention provides a motor output torque control method, including:

[0052] Step 101, detecting the current slip rate of the vehicle and the current slope value of the vehicle's po...

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Abstract

The invention provides a motor output torque method and device. The motor output torque method comprises the steps of detecting a current slip rate of a vehicle and a current slope value at which the position the vehicle is located; according to the current slip rate of the vehicle and the current slope value at which the position the vehicle is located, obtaining current braking requirement torque of the vehicle; obtaining a maximum output torque value of a motor; judging whether a braking pedal signal is obtained or not; when the braking pedal signal is obtained, obtaining the current output torque of the motor according to the current braking requirement torque of the vehicle and the maximum output torque value of the motor, and sending a signal which controls the torque output of the motor to a motor controller according to the current output torque. According to the motor output torque method and device, the energy output of the motor during stepped brake in the downhill travelling process can be reduced, and the service life of a vehicle brake pad is prolonged.

Description

technical field [0001] The invention relates to the field of vehicles, in particular to a motor output torque control method and device. Background technique [0002] When the vehicle is driving on a downhill road, the speed of the vehicle will become faster and faster. Usually, the driver will control the speed of the vehicle by stepping on the brake pedal. In this state, the output torque of the motor does not change, and That is, when the driver steps on the brake pedal, the actual torque output by the motor exceeds the required torque of the motor, which causes a waste of energy and is very detrimental to the driving safety of the vehicle. Contents of the invention [0003] The technical problem to be solved by the embodiments of the present invention is to provide a motor output torque control method and device for reducing the energy output of the motor when stepping on the brake during the downhill process. [0004] In order to solve the above technical problems, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L15/28
CPCB60L15/28Y02T10/72
Inventor 许新代康伟梁海强张蓝文李明亮
Owner BEIJING ELECTRIC VEHICLE
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