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Automobile driving force control method and electronic equipment

A control method and driving force technology, applied in the directions of engine control, electrical control, mechanical equipment, etc., can solve the problem that the torque of the automobile engine cannot accurately adapt to the driving needs of the driver, and achieve the effect of accurately adapting to the driving needs

Active Publication Date: 2020-03-03
GUANGZHOU AUTOMOBILE GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a vehicle driving force control method and electronic equipment to solve the technical problem in the prior art that the output of vehicle engine torque cannot accurately adapt to the driver's driving needs

Method used

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  • Automobile driving force control method and electronic equipment
  • Automobile driving force control method and electronic equipment
  • Automobile driving force control method and electronic equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] see figure 1 , figure 1 It is a flowchart of a vehicle driving force control method provided in Embodiment 1 of the present invention. Specifically, this embodiment provides a vehicle driving force control method, including:

[0080] S110. Acquiring the current vehicle speed, the current accelerator opening, the current sliding resistance, and the rotational mass equivalent factors of each gear;

[0081] Among them, the current vehicle speed refers to the speed at which the vehicle is running when the vehicle has not yet output the target engine torque; the target engine torque refers to the engine torque that can give the vehicle a suitable driving force to meet the driving needs of the driver; the current accelerator opening refers to the The opening of the accelerator pedal that controls the opening of the throttle valve to output the target engine torque; the current sliding resistance refers to the resistance that the car encounters when the car has not output th...

example 1

[0111] Example 1. Calculate the acceleration when the accelerator opening is 50% and the vehicle speed is 20km / h, 80km / h, and 100km / h:

[0112] 1) v=20km / h, then α=(-0.002×5.18-0.016)×20+5.18=4.66m / s 2 ;

[0113] 2) v=80km / h, then α=(-0.002×5.18-0.016)×80+5.18=3.0712m / s 2 ;

[0114] 3) v=100km / h, then α=(-0.002×5.18-0.016)×100+5.18=2.544m / s 2 ;

example 2

[0115] Example 2. Calculate the acceleration when the accelerator opening is 70%, and the vehicle speed is 40km / h, 60km / h, and 150km / h:

[0116] 1) v=40km / h, then α=(-0.002×7.21-0.016)×40+7.21=5.99m / s 2 ;

[0117] 2) v=60km / h, then α=(-0.002×7.21-0.016)×50+7.21=5.38m / s 2 ;

[0118] 3) v=150km / h, then α=(-0.002×7.21-0.016)×150+7.21=2.65m / s 2 ;

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Abstract

The invention discloses an automobile driving force control method and electronic equipment. The automobile driving force control method comprises the steps of obtaining the current vehicle speed, thecurrent throttle opening, the current sliding resistance and the rotating quality equivalent factor of each gear; obtaining the target acceleration according to the current vehicle speed and the current throttle opening; acquiring the target gear according to the target acceleration, the current vehicle speed, the current sliding resistance and the rotating quality equivalent factor of each gear;controlling the transmission gear of an automobile according to the target gear; and calculating and outputting the target engine torque according to the current vehicle speed, the target acceleration, the current sliding resistance and the rotating quality equivalent factor under the target gear. By means of the automobile driving force control method and the electronic equipment, the engine torque output by the automobile can be controlled by taking the target acceleration required by a driver as the target, so that proper driving force is applied to the automobile, the acceleration of theautomobile is the acceleration required by the driver, and driving demands of the driver are accurately adapted.

Description

technical field [0001] The invention relates to the field of automobile driving, in particular to an automobile driving force control method and electronic equipment. Background technique [0002] With the development of the country's economy, cars have gradually become popular in people's lives. The driving of the car needs to be realized by the rotation of the wheels, and the smooth rotation of the wheels under different road conditions requires the engine to output appropriate engine torque to give the wheels appropriate driving force. Whether the engine torque output by the engine meets the driver's demand will affect the driver's driving experience. [0003] At present, the engine torque of a car is generally determined by the accelerator opening and the engine speed. The determination of the engine torque is generally by querying the pre-set torque table. Although the pre-set torque table can basically meet the driving needs of the driver, the torque table The settin...

Claims

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Application Information

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IPC IPC(8): F02D45/00F02D29/02
CPCF02D29/02F02D45/00
Inventor 范良明王师梅兴泰
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD
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