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Vehicle motor hill-holding control method and system and vehicle

A control method and motor controller technology, applied in the direction of control drive, control device, vehicle components, etc., can solve the problems of slow response of speed loop and easy vibration of the whole vehicle, so as to achieve short adjustment time, avoid standing slope vibration, The effect of speeding up the conditioning process

Pending Publication Date: 2022-03-25
LEADRIVE TECH (SHANGHAI) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current standing slope control method adopts speed loop zero speed control in the whole process of standing slope, but the response of the speed loop is slow, and the whole vehicle is prone to jitter during the speed adjustment process.

Method used

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  • Vehicle motor hill-holding control method and system and vehicle
  • Vehicle motor hill-holding control method and system and vehicle
  • Vehicle motor hill-holding control method and system and vehicle

Examples

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Embodiment Construction

[0018] The advantages of the present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.

[0019] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.

[0020] The terminology used in the present disclosure is for the purpose of describing particular embodiments only, and is not intended to limit the present disclosure. As used in this disclosure and the appended claims, the singular...

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Abstract

The invention provides a hill-holding control method and system for a vehicle motor and a vehicle, and the method comprises the steps: firstly obtaining the acceleration a1 at a second moment through the rotating speed of the motor, and then calculating the electromagnetic torque Te1 at the second moment through a torque formula; and then the acceleration a2 at the fourth moment is obtained through the rotating speed of the motor, and the electromagnetic torque Te2 at the fourth moment is calculated through a torque formula. And the current whole vehicle load torque T1 is calculated by combining the acceleration a1 and the electromagnetic torque Te1 at the second moment and the acceleration a2 and the electromagnetic torque Te2 at the fourth moment. And finally, the load torque T1 serves as speed ring feedforward in hill-holding control, the speed ring adjusting process is accelerated through the adjusting torque Treg output by a speed ring, and the slope sliding distance of the vehicle is reduced.

Description

technical field [0001] The present invention relates to the technical field of new energy automobiles, in particular to a method, system and vehicle for controlling a standing slope of a vehicle motor. Background technique [0002] With the popularization and promotion of new energy vehicles, new energy vehicle manufacturers and users have gradually increased the performance requirements of vehicles. The original vehicle parking strategy has been unable to do so due to problems such as excessive sliding distance and jitter when entering and exiting the slope. Meet the development needs of the industry. [0003] New energy vehicles are prone to slipping when driving on slopes and starting on half slopes, so a large number of new energy vehicles will be added with the slope parking function. The current standing slope control method adopts the zero speed control of the speed loop in the whole process of standing on the slope, but the response of the speed loop is slow, and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L15/20
CPCB60L15/2018B60L2240/421B60L2240/423Y02T10/72
Inventor 徐奔奔朱骏
Owner LEADRIVE TECH (SHANGHAI) CO LTD
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