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A method and system for controlling the anti-slope torque of an electric vehicle

A technology for torque control and electric vehicles, applied in electric vehicles, control drives, control devices, etc., can solve problems such as unrealization, increased development costs for the whole vehicle, and increased R&D manpower for enterprise-related controllers, so as to save costs and reduce R&D. Manpower and material costs, the effect of reducing the weight of the vehicle

Active Publication Date: 2021-09-03
HOZON NEW ENERGY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are disadvantages in the existing technology: 1. The existing control strategy will undoubtedly increase the development cost of a controller for the whole vehicle, and increase the R&D manpower of the related controller of the enterprise; 2. The existing control method is suitable for mid-to-high-end models, but it is not equipped with Low-end models with ESC or other related controllers will not be able to achieve this function

Method used

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  • A method and system for controlling the anti-slope torque of an electric vehicle
  • A method and system for controlling the anti-slope torque of an electric vehicle
  • A method and system for controlling the anti-slope torque of an electric vehicle

Examples

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Embodiment 1

[0038] This embodiment provides an electric vehicle anti-slope torque control method, such as figure 1 shown, including steps:

[0039] S11. The vehicle control receives the vehicle speed signal sent by the motor controller in real time and the gear position signal of the vehicle collected in real time;

[0040] S12. The vehicle control judges whether the current vehicle enters the anti-slope mode according to the received vehicle speed signal and the collected vehicle gear position signal. If the received vehicle speed signal and vehicle gear position signal meet the requirements for entering the anti-slope conditions, the vehicle control requests the motor controller to enter the speed mode control;

[0041] S13. When the output torque of the vehicle controller is greater than the output torque of the motor controller, the anti-slope mode is exited, and the vehicle control requests the motor controller to enter the torque mode control.

[0042] In this example, if figure...

Embodiment 2

[0059] This embodiment provides an electric vehicle anti-slope torque control system, such as Figure 5 shown, including:

[0060] The receiving module 11 is used for vehicle control to receive the vehicle speed signal sent by the motor controller in real time and the gear position signal of the vehicle collected in real time;

[0061] The anti-slope module 12 is used for vehicle control to judge whether the current vehicle enters the anti-slope mode according to the received vehicle speed signal and the collected vehicle gear signal. If the received vehicle speed signal and the vehicle gear signal When the conditions for entering the anti-slope are met, the vehicle control requests the motor controller to enter the speed mode control;

[0062] The exit anti-slope module 13 is used to exit the anti-slope mode when the output torque of the vehicle controller is greater than the output torque of the motor controller, and the vehicle control requests the motor controller to ente...

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Abstract

The invention discloses a torque control method and system for anti-slip slope of an electric vehicle. The present invention relates to an electric vehicle anti-slope torque control method, comprising steps: S11. The whole vehicle control receives the vehicle speed signal sent by the motor controller in real time and the gear position signal of the vehicle collected in real time; S12. The whole vehicle control according to the received The received vehicle speed signal and the collected vehicle gear signal determine whether the current vehicle enters the anti-slip mode. If the received vehicle speed signal and vehicle gear signal meet the conditions for entering the anti-slope, the vehicle control request The motor controller enters the speed mode control; S13. When the output torque of the vehicle controller is greater than the output torque of the motor controller, the anti-slope mode is exited, and the vehicle control requests the motor controller to enter the torque mode control. The present invention does not need to add other controllers and hardware, reduces the weight of the whole vehicle and the layout work; it can be realized by directly adding the anti-slope function in the controller of the whole vehicle.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a method and system for controlling the anti-slope torque of an electric vehicle. Background technique [0002] With the development of the society, there are more and more vehicles of all kinds, resulting in more and more crowded roads, which brings various difficulties to the driving of the vehicles. The more common one is the sliding slope of the vehicles on the ramp, which poses a challenge to the driver's operation. higher requirements. The power of pure electric vehicles comes from the electric energy of the battery pack, and the motor system drives the vehicle to run. However, the motor drive system does not have a locking mechanism. Therefore, when the vehicle is parked or started on a slope, the driver needs to step on the accelerator and at the same time Braking operation, otherwise it is easy to slip and slope, and the safety is poor. In the prior art, some...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L15/20
CPCB60L15/2081B60L2240/421B60L2240/423Y02T10/72
Inventor 李璞肖岩曲帅崔剑李江有
Owner HOZON NEW ENERGY AUTOMOBILE CO LTD