Vehicle gear shift assist control method, system and vehicle
A control method and vehicle technology, applied in the field of vehicles, can solve the problems of motor torque smooth line difference, strong power loss feeling, poor driver experience, etc., to achieve the effect of ensuring smoothness, low power loss feeling, and improving driving experience
Active Publication Date: 2022-05-17
ZHEJIANG GEELY HLDG GRP CO LTD +1
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Problems solved by technology
[0003] An object of the first aspect of the present invention is to provide a vehicle gear shift assist control method to solve the problems of strong power loss and poor driver experience in the prior art when shifting gears
[0004] Another purpose of the first aspect of the present invention is to solve the problem in the prior art that the smooth line difference of the motor torque when shifting gears causes the vehicle to shake
Method used
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Embodiment Construction
[0044] figure 1 It is a schematic flowchart of a vehicle gear shift assist control method according to an embodiment of the present invention. The vehicle gear shift assist control method in this embodiment may include:
[0045] S10, start;
[0046] S20, judging whether it is necessary to activate the torque intervention of the transmission controller;
[0047] S30 If so, activate the intervention of the transmission controller on the torque;
[0048] S40, after the torque intervention of the gearbox controller is activated, load the assisting torque to the main path for calculating the motor demand torque, so as to obtain the final demand torque of the motor;
[0049] S50, control the operation of the motor according to the final demand torque.
[0050] In this embodiment, when it is judged that the torque induction of the gearbox controller needs to be activated, the gearbox controller will send an activation signal, which means that the torque intervention of the gearbo...
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The invention provides a vehicle shift assist control method, system and vehicle, and relates to the technical field of vehicles. The vehicle shift assist control method of the present invention includes: judging whether it is necessary to activate the torque intervention of the gearbox controller; if so, activating the torque intervention of the gearbox controller; when the torque intervention of the gearbox controller is activated In the case of , load the assist torque to the main calculation path of the motor demand torque to obtain the final demand torque of the motor; control the operation of the motor according to the final demand torque. The vehicle gear shift assist control method of the present invention prevents the output torque of the motor from being interrupted due to the intervention of the gearbox controller on the torque, and can effectively solve the problem of power interruption during the gear shifting process. In the case of ideal hardware characteristics of the battery pack Next, the motor capacity can guarantee a 100% filling rate, which minimizes the feeling of power loss and improves the driving experience.
Description
technical field [0001] The present invention relates to the technical field of vehicles, in particular to a vehicle gear shift assist control method, system and vehicle. Background technique [0002] For traditional power models, power interruption is inevitable during the shifting process. Because in the process of shifting, in order to respond to the speed adjustment demand of TCU (Transmission Control Unit), EMS (Engine Management System) must control the engine not to respond to the driver's pedal demand but to respond to TCU's intervention torque Otherwise, the opening and closing of the clutch and the gear shifting of the gearbox cannot be completed normally. In order to avoid poor driving experience brought by power loss to customers, many models try to optimize this problem in gearbox selection and shift calibration. For example, the AT gearbox (Automatic Transmission automatic transmission) and DCT gearbox (Dual Clutch Transmission dual-clutch transmission) that m...
Claims
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IPC IPC(8): F16H59/02F16H61/02F16H61/04B60W10/10B60W10/08B60W30/02
CPCF16H59/02F16H61/0204F16H61/04B60W10/10B60W10/08B60W30/02Y02T10/84
Inventor 刘晓俊席欢吕登科
Owner ZHEJIANG GEELY HLDG GRP CO LTD