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Vehicle torque coordinated control method, device and automobile

A technology for coordinated control and vehicles, which is applied in the direction of control drives, vehicle components, electric vehicles, etc., and can solve the problems of increasing vehicle costs

Active Publication Date: 2020-11-03
ZHEJIANG GEELY NEW ENERGY COMML VEHICLES CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, in order to ensure driving stability during emergency braking, vehicles equipped with AEBS systems generally need to be equipped with ESP systems to meet vehicle handling stability requirements, but this also increases vehicle costs.

Method used

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  • Vehicle torque coordinated control method, device and automobile
  • Vehicle torque coordinated control method, device and automobile
  • Vehicle torque coordinated control method, device and automobile

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Embodiment Construction

[0063] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of them. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0064] At present, in order to ensure the driving stability during emergency braking, vehicles equipped with the AEBS system generally need to be equipped with an ESP system at the same time to meet the requirements of vehicle handling stability, but this also increases the vehicle cost. Based on this, a vehicle torque coordination control method, device, and vehicle provided by the embod...

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Abstract

The invention provides a vehicle torque coordination control method and device and an automobile. The vehicle torque coordination control method is applied to a vehicle controller of a distributed drive vehicle. The distributed drive vehicle is equipped with an advanced emergency braking system (AEBS). Firstly, driver demand torque is determined, and vehicle longitudinal total demand torque is determined according to state information uploaded by the AEBS and the driver demand torque; secondly, a torque distribution coefficient among motors corresponding wheels is obtained and initial demand torque corresponding to the motors are determined according to the torque distribution coefficient and the vehicle longitudinal total demand torque; and finally, compensation torque which corresponds to the motors and maintains vehicle stability demand is calculated and final demand torque is determined according to the compensation torque and the initial demand torque. The method can ensure that the vehicle can meet requirements of active safety, operation ability and driving performance without the configuration of an ESP system so as to reduce the cost of parts, thereby reducing the cost ofthe vehicle.

Description

technical field [0001] The present invention relates to the technical field of vehicle torque control, in particular to a vehicle torque coordinated control method, device and vehicle. Background technique [0002] AEBS (Advanced Emergency Braking System) is an automatic road vehicle safety system that relies on sensors to monitor the vehicle ahead and calculates the impending situation by detecting the relative speed and distance to the target vehicle . Depending on the relative speed and distance between the vehicle and the vehicle ahead, AEBS can automatically avoid a collision or mitigate its impact by issuing a hazard warning or even actively applying emergency braking. [0003] Under normal circumstances, it is very easy to cause lateral slippage of the vehicle when the vehicle is braked in an emergency, causing unexpected and unstable movement of the body, which affects the driving safety of the driver. For example, when the AEBS system is in the emergency braking s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L15/20
CPCY02T10/72
Inventor 刘德春刘庆勃李琳孙昊林元则韦健林胡红星
Owner ZHEJIANG GEELY NEW ENERGY COMML VEHICLES CO LTD
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