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Control system and control method for limping function of AT transmission

A technology of a control system and a control method, which is applied in the control of transmissions, components with teeth, belts/chains/gears, etc., can solve the problems of difficulty in normal driving of the whole vehicle, achieve simple and flexible solutions, increase redundancy control, interactive effect

Pending Publication Date: 2021-07-02
SHAANXI FAST GEAR CO
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art, and provide a control system and control method for the limp function of the AT transmission, so as to solve the problem in the prior art that when the AT transmission controller is damaged during the driving process of the vehicle, it is difficult for the whole vehicle to drive normally. The problem

Method used

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  • Control system and control method for limping function of AT transmission
  • Control system and control method for limping function of AT transmission

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Embodiment Construction

[0032] The present invention is described in further detail below in conjunction with accompanying drawing:

[0033] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, and therefore cannot be construed as limiting the present invention; the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be construed as indicating or implying relative importance; in addition, unless otherwise Clearly stipulated and limited, the terms "installation"...

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Abstract

The invention discloses a control system and method for a limping function of an AT transmission. The system comprises a limp home controller, the limp home controller is connected with a switch box, a relay box and an AT transmission electromagnetic valve, so that in a limp home operation mode, when the relay box is closed, the limp home controller and the AT transmission electromagnetic valve can be directly connected, the limp home controller controls the AT transmission electromagnetic valve, and when the AT transmission has an electric control fault, the transmission enters a limp home mode through the switch and safely returns to a destination. The system and the method are simple and flexible, redundancy control is added, normal gear control of the transmission is not affected, and normal driving of a vehicle is not affected. The limp control of the system is controlled by the transmission limp home controller, gear control and fault judgment of the transmission are achieved, and the system is safe, reliable and high in interactivity. The control method in the scheme is high in applicability, the requirement for the whole vehicle is low during matching, and the control method can be used for limp home control of different types.

Description

【Technical field】 [0001] The invention belongs to the technical field of transmission control, and in particular relates to a control system and a control method for the limp function of an AT transmission. 【Background technique】 [0002] During the driving process of the vehicle, due to the complex and changeable road conditions and the heavy load, there is the possibility of occasional vehicle failure. If a sudden failure occurs during normal driving, personal and property safety should be considered first. At this time, the urgent problem to be solved is, How to transport the vehicle to the repair location. For large special vehicles, road rescue vehicles are difficult to rescue, or it takes a long time for rescue vehicles to arrive at this time. If the faulty vehicle has self-rescue ability, it is a very recommended solution from the perspective of safety and cost. [0003] The "limp home" mode enables the car's electronic control system to perform basic functions in th...

Claims

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Application Information

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IPC IPC(8): F16H61/12F16H63/40
CPCF16H61/12F16H63/40F16H2061/1208F16H2061/1268F16H2061/1224F16H2061/1236
Inventor 杨帆严鉴铂刘义李环徐旭毕乾坤
Owner SHAANXI FAST GEAR CO
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