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New energy automobile AMT gearbox gear shifting force correction control method and system

A technology of new energy vehicles and control methods, which is applied in the field of shift force correction control of AMT gearboxes of new energy vehicles. Time, the effect of reducing transmission risk

Inactive Publication Date: 2021-10-29
山东元齐新动力科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the deficiencies of the prior art, the present disclosure provides a new energy vehicle AMT gearbox shift force correction control method and system, which controls the drive force output of the shift motor by actually correcting the shift force, and solves the problem caused by the complex environment of the whole vehicle. The problem of long shift time, shift failure or gearbox damage

Method used

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  • New energy automobile AMT gearbox gear shifting force correction control method and system

Examples

Experimental program
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Embodiment 1

[0039] like figure 1 As shown, the present disclosure provides a new energy vehicle AMT shift shift force correction control method, including the following procedure:

[0040] The present embodiment increases the shift force voltage and temperature correction by increasing the transfer force voltage and temperature correction, and the power transmission force is controlled.

[0041] Change power correction needs to be employed in the case of change force request;

[0042] In the shift force output condition module (SHF_PWM_ON):

[0043] When the shift force input (SHF_PWM_IN) is greater than the power output minimum value (c_shf_pwm_out_limit), the shift force output (SHF_PWM_OUT) is a shift correction force (SHF_PWM_COR);

[0044] When the shift force input is lower than the shift force output minimum value hysteresis (c_shf_pwm_out_limit_hys), the shift force output is zero.

[0045] In the transfer force correction module (SHF_PWM_COR):

[0046] The shift force correction is i...

Embodiment 2

[0063]The present disclosure Example 2 provides a new energy vehicle AMT shifting power correction control system, including:

[0064] The data acquisition module is configured to get battery voltage and ambient temperature of new energy vehicles;

[0065] The shift motor drive forces acquisition module is configured to obtain the maximum shift motor driving force and minimum shifting motor drive according to the acquired battery voltage and ambient temperature;

[0066] The shift correction is configured to be: based on the maximum shift motor driving force, the minimum shifting motor driving force and the shifting force input, resulting in shift correction.

[0067] The working method of the system is the same as that of the new energy vehicle AMT shift shift force modified control method provided in Example 1, and details are not described herein again.

Embodiment 3

[0069] The present disclosure Embodiment 3 provides a computer readable storage medium, which stores a program that implements the new energy vehicle AMT shifting-shift force correction control method according to Embodiment 1 of the present disclosure when executed by the processor. The steps are:

[0070] When the shift force input (SHF_PWM_IN) is greater than the power output minimum value (c_shf_pwm_out_limit), the shift force output (SHF_PWM_OUT) is a shift correction force (SHF_PWM_COR);

[0071] When the shift force input is lower than the shift force output minimum value hysteresis (c_shf_pwm_out_limit_hys), the shift force output is zero.

[0072] The shift force correction is input to the battery voltage (VB) and ambient temperature (TIA, using engine intake temperature);

[0073] Two-dimensional data corresponding to different VB and TIA, output maximum shift motor driving force (IP_SHF_MOT_PWM_MAX__VB__TIA) and minimum shifting motor driving force (IP_SHF_MOT_PWM_MIN_M...

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Abstract

The invention provides a new energy automobile AMT gearbox gear shifting force correction control method and system. The storage battery voltage and the environment temperature of a new energy automobile are obtained; according to the obtained storage battery voltage and the environment temperature, the maximum gear shifting motor driving force and the minimum gear shifting motor driving force are obtained; according to the maximum gear shifting motor driving force, the minimum gear shifting motor driving force and the gear shifting force input, gear shifting correction force is obtained; and the gear shifting motor driving force output is controlled through the actually-corrected gear shifting force, and the problems of long gear shifting time, gear shifting failure or gearbox damage caused by the complex environment of the whole automobile are solved.

Description

Technical field [0001] The present disclosure relates to the field of new energy vehicles, and Background technique [0002] The statement of this section is merely the background technology related to the present disclosure, and it is not necessarily constituting the prior art. [0003] The existing AMT gearbox control is multi-position fuzzy control mode, and the actual position determination and control of the gear position according to the signal acquired by the shift position sensor, and the shift force control is multi-proportional correction method or no wire change force correction, and Calibration debugging is more complicated. [0004] The whole vehicle is more complicated, and the vehicle low pressure source is from a low-voltage battery. When a plurality of components of the whole vehicle are high-power demand, it will cause the battery power output inadequate, resulting in undervoltage, when the battery is overcharged, causing overvoltage However, when the gearbox is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H59/02F16H61/02
CPCF16H59/02F16H61/0204
Inventor 刘林卢贵兵李金龙明永帅陈绪强
Owner 山东元齐新动力科技有限公司