A calibration method for accelerator pedal torque request

A technology of accelerator pedal and calibration method, which is applied in force/torque/power measuring instrument calibration/testing, instruments, complex mathematical operations, etc., which can solve the problems of large shifting impact and poor vehicle speed, and reduce shifting Shock, reduce the gradient of driving force change, reduce the effect of shock

Active Publication Date: 2021-01-15
JILIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The invention provides a method for calibrating the torque request of the accelerator pedal to solve the problems that the vehicle speed is not easy to control and the impact of shifting is large when the vehicle is at a low speed

Method used

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  • A calibration method for accelerator pedal torque request
  • A calibration method for accelerator pedal torque request
  • A calibration method for accelerator pedal torque request

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Embodiment Construction

[0058] The present invention will be further described below in conjunction with accompanying drawing and embodiment: take the car of engine as power source as example, and the basic parameters of this car are as follows table 1.

[0059] Table 1: The vehicle basic parameter table in the embodiment of the present invention

[0060]

[0061]

[0062] The engine external characteristic curve in the embodiment of the present invention is as figure 1 As shown, the process of the entire acceleration pedal torque request calibration method is as follows figure 2 shown.

[0063] The specific operation steps are as follows:

[0064] Step 1: First, according to the basic parameters related to the driving dynamics of the car, determine the balance curve of the driving force and driving resistance of the car. The driving force curve is determined as follows:

[0065]

[0066] In the formula, T tq is the driving torque at the crankshaft end of the engine, i g is the gear ra...

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PUM

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Abstract

The invention relates to an acceleration pedal torque request calibration method, which belongs to the technical field of vehicle torque demand calibration. First, determine the driving force and running resistance curves of the car according to the basic parameters of the car, then determine the driving force request curve at the wheel end when the accelerator pedal is 100%, calculate the driving force request curve at the wheel end with a partial accelerator pedal opening, and finally set the accelerator pedal at the wheel end. The drive force request is converted to the crankshaft end of the engine to obtain the accelerator pedal demand torque map that needs to be output by the engine in multiple gears. The calibration method described in the present invention is novel and practical, can reduce the impact of shifting gears, realizes the easy control of the vehicle speed by the driver by forming an insensitive area of ​​the accelerator pedal near the driving resistance curve of the vehicle, and effectively improves the driving quality of the vehicle.

Description

technical field [0001] The invention belongs to the technical field of vehicle torque demand calibration, and in particular relates to a calibration method for accelerator pedal torque demand. Background technique [0002] With the development of the automobile industry, consumers have higher and higher requirements for the driving quality of automobiles, and electronic throttle valves with greater design freedom have emerged as the times require. By configuring the mapping relationship between the accelerator pedal and the engine torque as needed, the non-linear correspondence between the accelerator pedal and the throttle opening can be realized to meet different driving needs of different driving groups and operating conditions. Electronic throttles have brought design freedom in how the accelerator pedal is mapped to requested engine torque, but they have also sparked debate about how much torque the driver really wants from the engine when he depresses the pedal. The m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/10G01L25/00B60W40/10
CPCG01L25/003B60W40/10G06F30/15
Inventor 管欣金号卢萍萍段春光
Owner JILIN UNIV
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