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Torque compensation method and device for vehicle gear shifting

A torque compensation, vehicle technology, applied in control devices, vehicle components, hybrid vehicles, etc., can solve the problems of other vehicles, such as danger, uneven driving, and small transmission torque, to improve safety and ride comfort, increase satisfaction high-speed, low-cost effect

Active Publication Date: 2021-08-13
ZHEJIANG GEELY NEW ENERGY COMML VEHICLES CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on the P4 system, the power combination of engine + AMT gearbox is generally used. During the shifting process of the gearbox, in order to reduce the damage to the transmission gear due to the impact load, the shifting is usually realized by separating and combining the clutch. When the clutch When the clutch is separated and combined, the power will be temporarily interrupted, mainly because the actual transmission torque of the clutch is less than the transmission torque required by the driver; at the same time, due to the change of the gear position before and after the shift, it will directly cause the uneven driving of the vehicle and affect the Driver's Driving Experience
[0005] In some special cases, due to the failure of shifting, it may cause major traffic accidents. For example, when the vehicle goes uphill with a heavy load, if the AMT gearbox fails to shift, the power of the loaded vehicle will be interrupted. For a long time, it will lead to the unexpected downward slope of the loaded vehicle, which will cause unexpected danger to the driver and other vehicles on the road

Method used

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  • Torque compensation method and device for vehicle gear shifting
  • Torque compensation method and device for vehicle gear shifting
  • Torque compensation method and device for vehicle gear shifting

Examples

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Embodiment 1

[0044] Embodiment 1 provides a torque compensation method for vehicle gear shifting.

[0045] Such as figure 1 Shown, described method comprises the steps:

[0046] S101. Receive a gear shift request from the vehicle;

[0047] S102. According to the gear shift request, execute the gear shift of the vehicle through the clutch;

[0048] S103. Acquiring the compensation torque of the clutch and the driving demand torque during the gear shifting process of the clutch executing the vehicle;

[0049] S104. According to the compensation torque, distribute the driving demand torque to the motor demand torque and the engine demand torque according to the torque distribution coefficient, and use the motor demand torque to compensate the engine demand torque.

[0050] Such as figure 2 As shown, according to the shift request, the gear shifting of the vehicle is performed through the clutch, including the following steps:

[0051] S201. Obtain the current gear position of the vehicl...

Embodiment 2

[0071] The second embodiment provides a torque compensation device for gear shifting of a vehicle.

[0072] Such as Figure 4 As shown, the device includes:

[0073] Obtaining a request module 10, configured to receive a gear shift request of the vehicle;

[0074] The first execution module 20 is used to execute the gear shifting of the vehicle through the clutch;

[0075] A torque acquisition module 30, configured to acquire clutch compensation torque and driving demand torque;

[0076] The second execution module 40 is configured to distribute the driving demand torque to the motor demand torque and the engine demand torque according to the torque distribution coefficient, and use the motor demand torque to compensate the engine demand torque.

[0077] Such as Figure 5 As shown, the first execution module 20 includes:

[0078] A gear acquisition unit 201, configured to acquire the current gear of the vehicle;

[0079] A judging unit 202, configured to judge whether th...

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Abstract

The present invention relates to automobile manufacturing technology, in particular to a torque compensation method and device for vehicle gear shifting. The method includes the steps of: receiving a gear shifting request of a vehicle; performing the gear shifting of the vehicle through a clutch according to the gear shifting request; During the gear shifting process of the clutch-executing vehicle, obtain the compensation torque of the clutch and the driving demand torque; according to the compensation torque, distribute the driving demand torque to the motor demand torque and the engine demand torque according to the torque distribution coefficient, and use the The required torque of the motor compensates the required torque of the engine; the present invention can avoid power interruption caused by the existence of the difference, improve the safety and smoothness of the vehicle, and increase customer satisfaction.

Description

technical field [0001] The invention relates to the technical field of automobile manufacturing, in particular to a torque compensation method and device for vehicle gear shifting. Background technique [0002] With the depletion of traditional energy sources, new energy sources are widely used, especially in the automotive industry. Many large car manufacturers choose hybrid power instead of traditional fuel systems, which can save fuel, reduce energy consumption, and ensure the endurance of the car. [0003] Existing hybrid systems can be driven by an internal combustion engine as the main propulsion device and an electric motor as the auxiliary propulsion device. According to the position of the motor relative to the traditional power system, the single-motor hybrid scheme can be divided into five categories, respectively P0, P1, P2, P3 and P4. [0004] Based on the P4 system, the power combination of engine + AMT gearbox is generally used. During the shifting process of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W20/10
CPCB60W20/10B60W2520/10B60W2540/10B60W2540/16
Inventor 林元则刘德春韦健林
Owner ZHEJIANG GEELY NEW ENERGY COMML VEHICLES CO LTD
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