Vehicle control method and device and gearbox

A vehicle control device and vehicle control technology, applied in the direction of transmission control, toothed components, belts/chains/gears, etc., can solve threats to driver safety, automatic transmissions cannot output power, and gears cannot be combined, etc. problems to avoid loss of control

Inactive Publication Date: 2022-06-21
SHENGRUI TRANSMISSION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the solenoid valve itself fails, or the power supply circuit of the variable solenoid valve fails, the solenoid valve no longer responds to the control command and is in an uncontrolled state. The uncontrolled solenoid valve directly leads to the failure of the gear position or the combination of multiple clutches at the same time leads to automatic switching. The gearbox cannot output power and even threatens the safety of the driver

Method used

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  • Vehicle control method and device and gearbox
  • Vehicle control method and device and gearbox
  • Vehicle control method and device and gearbox

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Embodiment Construction

[0044] If so, in S146, determine the output gear as the final switching gear.

[0045] If the current driving gear of the vehicle is a controllable gear of the vehicle, but the current driving gear of the vehicle is not equal to the output gear, the current driving gear of the vehicle needs to be switched. Firstly, it is judged whether the clutches in the process of switching the current vehicle driving gear to the output gear are all controllable. If all the clutches in the switching process are controllable, the output gear is determined as the final switching gear, and the current vehicle driving gear is switched. to the output gear. During the switching process, the vehicle gear will be changed sequentially according to the vehicle gear level set by the vehicle, which will make the vehicle have the strongest comfort. Therefore, it is necessary to judge whether the clutch during the switching process is controllable. For example, the current vehicle driving gear is D5, and...

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PUM

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Abstract

The invention relates to a vehicle control method and device and a gearbox. The vehicle control method comprises the steps that fault information of a vehicle gear shifting electromagnetic valve is obtained; vehicle controllable gears are determined according to the fault information of the vehicle gear shifting electromagnetic valve; determining an output gear according to the vehicle controllable gear and a target gear; and according to the output gear, the vehicle controllable gear and the current vehicle driving gear, a final gear switching gear is determined. The gear of the vehicle can be in a controllable state, the gear is selected according to the actual driving condition, the gearbox can normally output power, the problem that the vehicle is out of control is avoided, and the life safety of a driver cannot be affected.

Description

technical field [0001] The present disclosure relates to the technical field of vehicle control, in particular to a vehicle control method, device and gearbox. Background technique [0002] The shifting of automatic transmission vehicles is usually carried out by the automatic transmission. The transmission control unit realizes the combination and opening of the clutch by controlling the solenoid valve, realizes the opening and closing of the clutch hydraulic oil circuit, and then presses the clutch or opens the clutch through the pressure of the transmission hydraulic system. In this way, different gears can be switched by controlling the combination of different clutches, and the power of the engine can be transmitted to the wheels to realize the running of the whole vehicle. [0003] When the electromagnetic valve itself fails, or the power supply circuit of the variable electromagnetic valve fails, the electromagnetic valve no longer responds to the control command and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H61/12F16H61/18F16H61/02F16H63/40
CPCF16H61/12F16H61/18F16H61/0204F16H63/40
Inventor 高龙时玉珂程云江王圣涛
Owner SHENGRUI TRANSMISSION
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