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Vehicle torque distribution method, device, controller and storage medium

A torque distribution method and vehicle technology, applied in the direction of control drive, vehicle components, electric vehicles, etc., can solve the problem of high energy consumption of vehicles

Active Publication Date: 2021-10-12
南京清研易为新能源动力有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, applying the current torque distribution strategy to drive each hub motor of a distributed drive vehicle has the problem of high energy consumption of the vehicle

Method used

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  • Vehicle torque distribution method, device, controller and storage medium
  • Vehicle torque distribution method, device, controller and storage medium
  • Vehicle torque distribution method, device, controller and storage medium

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Embodiment Construction

[0074] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0075] The vehicle torque distribution method provided by this application can be applied to such as figure 1 shown in the distributed drive vehicle. Among them, the distributed drive vehicle can include multiple sets of independently controlled electric drive units, each set of electric drive units has a motor (the motor can be a wheel motor or a hub motor) and a set of motor controllers, in addition, each set of electric drive units The drive unit can also be equipped with a reducer. If not equipped with a reducer, the electric drive unit is an electric drive unit direc...

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Abstract

The present application relates to a vehicle torque distribution method, device, controller and storage medium. The method includes: obtaining the power loss model of each electric drive unit at different speeds of the target vehicle; determining the wheel electric torque demand and magnitude sequence of the electric drive units on both sides of the vehicle body according to the total wheel electric torque demand of the target vehicle; In each speed state of the target vehicle, according to the power loss model of each electric drive unit and the preset wheel electric torque optimization algorithm, the minimum condition for the total power loss of all electric drive units on the same side is obtained; According to the minimum condition of the sum of unit power losses, the candidate wheel electric torque distribution of each electric drive unit is obtained; according to the total wheel electric torque demand of the target vehicle and the wheel electric torque demand and magnitude sequence of each electric drive unit on both sides of the vehicle body, Among the candidate wheel electric torque distribution methods, the optimal distribution method that satisfies the minimum sum of power losses of all electric drive units on the same side is determined.

Description

technical field [0001] The present application relates to the technical field of distributed drive vehicles, in particular to a vehicle torque distribution method, device, controller and storage medium. Background technique [0002] With the development of new energy vehicle technology, distributed drive vehicle technology has emerged. Distributed drive vehicles are driven by multiple independent wheel hubs or wheel side motors, which are suitable for pure electric configurations and various hybrid configurations, and enhance vehicle performance. Power, with the advantages of short transmission chain, high transmission efficiency, high integration, and enhanced vehicle reliability. [0003] In the traditional distributed drive vehicle control, a hierarchical control control architecture is often adopted. The vehicle controller provides the total torque demand of the vehicle according to the driver's operation and sensor input, and then according to the preset torque Allocat...

Claims

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Application Information

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IPC IPC(8): B60W10/08B60W40/00B60L15/20
CPCB60L15/20B60W10/08B60W40/00Y02T10/72
Inventor 胡家毅李建秋张奔刘树成李航李园园宋金鹏李景康徐梁飞欧阳明高
Owner 南京清研易为新能源动力有限责任公司
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