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Control Method of Load Adaptive Throttle System

A control method and self-adaptive technology, which can be applied to control drives, control devices, electric vehicles, etc., and can solve problems such as the impact of driving experience

Active Publication Date: 2018-08-03
杭州衡源汽车科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing technology, there is a unique correspondence between the throttle opening and the output power of the car engine. Therefore, once the load of the car changes and the stepping on the accelerator pedal is the same, the output power of the car engine is constant, but the final response of the car has changed. Although this has been the case for a long time There are always problems, but for the driver, the driving experience is still affected to a certain extent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A control method for a load-adaptive throttle system, suitable for electric vehicles or hybrid vehicles, establishing a throttle opening comparison table and / or a throttle opening comparison formula for the total weight of the vehicle to obtain the current total weight of the vehicle,

[0038] According to the current gross weight of the vehicle, query the throttle opening comparison table or the throttle opening comparison formula to obtain the current response correction value, and set the throttle response according to the actual throttle opening and the response correction value.

[0039] Include the following steps:

[0040] Step 1: Read the standard configuration parameters and the preset throttle opening to compare the vehicle's electrical output power to obtain the vehicle's calibrated weight value;

[0041] Step 2: Obtain the current real-time total vehicle weight;

[0042] Step 3: If the current real-time total vehicle weight is less than or equal to the calibr...

Embodiment 2

[0075] This embodiment is basically the same as Embodiment 1. The car in Embodiment 2 is provided with an L-shaped air pipe below the accelerator pedal, and a piston rod is arranged in the L-shaped air pipe. The upper end of the air pipe faces the accelerator pedal. The upper end of the piston rod is fixedly connected to the lower surface of the accelerator pedal, and the lower end of the L-shaped air pipe is provided with two vent holes, the sum of the diameters of the two vent holes is smaller than the diameter of the upper end of the air pipe, one of which is The vent hole is equipped with a safety redundant solenoid valve, and the safety redundant solenoid valve is connected to the automobile ECU. In step 1, the set pedaling limit speed has an adjustment range, and the pedaling limit speed is within the adjustment range and is equal to the set speed. The opening of the safety redundant solenoid valve is proportionally related, and the safety redundant solenoid valve is tran...

Embodiment 3

[0078] This embodiment is basically the same as Embodiment 1, except that the power distribution ratio of the two tires of the front wheels of the automobile is a standard configuration parameter, and the current real-time total weight and center of gravity of the automobile are calculated by the weight gauge carried by the wheels Position, extract the offset vector between the real-time center of gravity position and the preset center of gravity position, if the offset vector is maintained within a predetermined time, then obtain the current offset vector as the calculated value, with the horizontal axis of the car as the X axis and the vertical axis of the car as the Y axis The current offset vector is decomposed, and the tire power distribution ratio of the two front wheels is corrected proportionally according to the current X-axis offset vector decomposition value. 94% of the tire power distribution ratio of all wheels is the distribution fixed value, and 6% of the tire po...

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Abstract

The invention relates to a control method of a load self-adaptive accelerator system. The defects in the prior art are overcome. According to the technical scheme, the control method is suitable for an electric vehicle or a hybrid vehicle, and is characterized in that an accelerator opening degree contrast table and / or an accelerator opening degree contrast formula is established for the total weight of a vehicle, and the current total weight of the vehicle is obtained, the current response modification value is obtained by inquiring the accelerator opening degree contrast table and / or the accelerator opening degree contrast formula according to the current total weight of the vehicle, and accelerator response is set according to the actual opening degree of an accelerator and the response modification value. Current offset vectors are decomposed with the vehicle transverse axis as the X axis and the vehicle longitudinal axis as the Y axis, the tire power distribution ratio of each tire is modified according to the decomposition value of the current offset vectors, each tire of the vehicle outputs power in the form of standard electricity according to the power distribution ratio, the power is multiplied by the response modification value to obtain a product, the product as the final vehicle electricity output power is output, and the second step is executed again.

Description

technical field [0001] The invention relates to a control method of an accelerator system, in particular to a control method of a load-adaptive accelerator system. Background technique [0002] Generally, the accelerator of a car controls the opening of the throttle to control the speed of the vehicle, but now electric vehicles or hybrid vehicles are emerging in the market as emerging vehicles, and the traditional method of controlling the throttle is no longer applicable. Electric vehicles or hybrid vehicles Although the car throttle is called a throttle, it mainly controls the output power of the motor to achieve the purpose of controlling the output. In general, it converts the output value by detecting the throttle opening, and then sends a drive command to make the motor output the corresponding power. [0003] Chinese patent literature once disclosed an inductive accelerator sensor for electric vehicles (its application number is: CN201110068981.X, published on Septemb...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L15/20
CPCB60L15/20B60L2240/26B60L2240/42B60L2250/26Y02T10/72
Inventor 于宙王祖光陈雷
Owner 杭州衡源汽车科技有限公司
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