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Differential active protection control method and device, equipment and storage medium

An active protection and control method technology, applied in the field of vehicles, can solve problems such as increased maintenance costs and differential failure, and achieve the effects of reducing the risk of failure, reducing the autorotation speed, and saving maintenance costs

Active Publication Date: 2021-06-01
BEIJING CHJ AUTOMOTIVE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] If the TCS function is normal but cannot control the left and right wheel speed difference to the safe range of the differential, it will still cause the differential to fail and increase the maintenance cost

Method used

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  • Differential active protection control method and device, equipment and storage medium
  • Differential active protection control method and device, equipment and storage medium

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Embodiment Construction

[0066] In order to more clearly understand the above objects, features and advantages of the present disclosure, the solutions of the present disclosure will be further described below. It should be noted that, in the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other.

[0067] In the following description, many specific details are set forth in order to fully understand the present disclosure, but the present disclosure can also be implemented in other ways than described here; obviously, the embodiments in the specification are only some of the embodiments of the present disclosure, and Not all examples.

[0068] figure 1 It is a flow chart of a differential active protection control method provided by an embodiment of the present disclosure. The differential active protection control method can be applied to actively protect the vehicle differential under the situation that one side of the veh...

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Abstract

The invention relates to a differential active protection control method and device, equipment and a storage medium. The differential active protection control method comprises the steps of acquiring real-time operation data of a vehicle and the operation state of a traction control system (TCS), wherein the real-time operation data comprises the vehicle speed and the wheel speed difference of left and right wheels, and the operation state of the TCS comprises a first operation state and a second operation state; under the condition that it is determined that the real-time operation data and the TCS operation state meet the active protection function activation condition, obtaining the maximum allowable output torque value, which corresponds to the wheel speed difference, of a driving motor; and adjusting the torque of the driving motor according to the maximum allowable output torque value. The active protection function of the differential is activated, and the driving motor is controlled to adjust the torque, so that the wheel speed difference of left and right wheels is reduced, the rotation speed of a planetary gear of the differential is reduced, active protection of the differential is achieved, the failure risk of the differential is reduced, and the maintenance cost is saved.

Description

technical field [0001] The present disclosure relates to the technical field of vehicles, and in particular to a method, device, device and storage medium for active protection control of a differential. Background technique [0002] Electric drive axles generally consist of drive motors, motor controllers, transmission gears and differentials. During the working process of the electric drive axle, the drive motor provides torque according to the demand, the torque is transmitted by the transmission gear, and finally transmitted to the left and right axle shafts through the differential. [0003] When the vehicle is running straight on a good road, the left and right wheels rotate at the same speed, and the differential planetary gears have no rotation relative to the planetary gear shafts. When the rotational speeds of the left and right wheels are different, the differential planetary gears rotate relative to the planetary gear shafts. The limit state is that one side of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L15/20
CPCB60L15/20B60L2240/423Y02T10/72
Inventor 史伟奇程永兴
Owner BEIJING CHJ AUTOMOTIVE TECH CO LTD
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