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Driving torque control method and system for vehicle and vehicle

A technology of driving torque and control method, which is applied to control devices, vehicle components, driver input parameters, etc., and can solve problems such as reducing vehicle safety, single working conditions, and vehicle instability

Active Publication Date: 2020-09-11
摩登汽车有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the single working condition applicable to the torque control of the vehicle in the prior art. When it is in other types of working conditions except the braking condition, it is easy to cause the vehicle to lose stability and reduce the vehicle's safety. Issues that are safe to use and cause a higher accident rate

Method used

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  • Driving torque control method and system for vehicle and vehicle
  • Driving torque control method and system for vehicle and vehicle
  • Driving torque control method and system for vehicle and vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] Combine below figure 1 and figure 2 A driving torque control method for a vehicle disclosed in Embodiment 1 of the present invention is described, figure 1 It is a schematic flowchart of a driving torque control method for a vehicle disclosed in Embodiment 1 of the present invention, figure 2 It is a schematic diagram of a maximum driving torque curve of a vehicle disclosed in Embodiment 1 of the present invention.

[0079] A drive control method for a vehicle disclosed in the first embodiment of the present invention includes:

[0080] S10: Acquiring operating parameters when the vehicle is in working state.

[0081] Specifically, the vehicle being in a working state means that the vehicle is in a starting state and a running state. The operating parameters refer to the first driving speed parameter of the vehicle, the slip ratio parameter of the left driving wheel of the vehicle, the slip ratio parameter of the right driving wheel of the vehicle, the engine spee...

Embodiment 2

[0128] Combine below image 3 A driving torque control method for a vehicle disclosed in Embodiment 2 of the present invention is described, image 3 It is a schematic flowchart of a driving torque control method for a vehicle disclosed in Embodiment 2 of the present invention, including:

[0129] S10: Acquiring operating parameters when the vehicle is in working state.

[0130] S20: Determine the driving condition of the vehicle according to the operating parameters.

[0131] Specifically, the driving conditions of the vehicle include curve driving, overspeed driving, low speed driving, and slippery road driving. The values ​​of the operating parameters are different, and the driving conditions of the vehicle are also correspondingly different. Take driving as an example to illustrate:

[0132] When the value of the first driving speed parameter V is 4.6m / s, the accelerator pedal position parameter P a The value of the engine speed parameter N is 11.3%. e The value is 23...

Embodiment 3

[0146] Combine below Figure 4 A driving torque control system for a vehicle disclosed in Embodiment 3 of the present invention is described, Figure 4 It is a schematic structural diagram of a driving torque control system for vehicles disclosed in Embodiment 3 of the present invention.

[0147] The drive torque control system 4 for a vehicle includes:

[0148] A torque controller 40 , an engine controller 41 and a vehicle operating parameter acquisition device 42 .

[0149] The vehicle operating parameter collection device 42 is connected with the torque controller 40 and is used to collect the operating parameters of the vehicle when the vehicle is in a working state and transmit them to the torque controller 40 .

[0150] The engine controller 41 is connected with the engine 43, and the torque controller 40 is connected with the engine controller 41 for performing the following steps:

[0151] Obtain the operating parameters of the vehicle when it is in working conditio...

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Abstract

The invention discloses a driving torque control method for a vehicle, which can judge whether the vehicle is pre-unstable or not only by comparing operating parameters with pre-instability conditionsof the vehicle no matter what working condition the vehicle is in. When instability of the vehicle occurs in advance, the maximum safe driving torque can be provided for the engine according to the running parameters of the vehicle; compared with the mode that the braking torque of the motor is controlled to be gradually reduced when the vehicle is in a single working condition, the technical scheme is suitable for any working condition, the maximum safe driving torque can be directly provided for the engine, and therefore pre-instability of the vehicle is prevented more rapidly and accurately, and normal running of the vehicle is guaranteed. The use safety of the vehicle is improved; and the accident rate is reduced. In addition, the invention further discloses a driving torque control system for the vehicle and the vehicle.

Description

technical field [0001] The invention relates to the field of vehicles, in particular to a driving torque control method and system for vehicles and an automobile. Background technique [0002] The vehicle electronic stability control system (ELECTRONIC STABILITY CONTROL, ESC) can automatically analyze the instability of the vehicle body, deal with a variety of complex working conditions, realize active braking, emergency avoidance and steering stability, etc., and reduce the accident rate and Therefore, ESC has gradually become a standard configuration of vehicles. The control logic in ESC is very complex, and it is usually necessary to calibrate a variety of working conditions, such as the calibration of active braking conditions, emergency avoidance conditions, and steering stability conditions, etc., and then analyze and process the instability of the vehicle body for each working condition , In this way, the development of ESC will be more difficult and the development ...

Claims

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Application Information

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IPC IPC(8): B60W10/06B60W30/02B60W40/00B60W40/10B60W40/105
CPCB60W10/06B60W30/02B60W40/00B60W40/10B60W40/105B60W2510/0638B60W2510/1005B60W2510/20B60W2520/10B60W2520/26B60W2540/10B60W2710/0666
Inventor 张博吴峰杰
Owner 摩登汽车有限公司
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