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Auxiliary downhill control system and control method based on retarder

An auxiliary control system and auxiliary control technology, applied in the direction of electric braking system, control device, brake type, etc., can solve the problem of not realizing automatic opening and exit of downhill assistance, and achieve the effect of reducing driving burden

Inactive Publication Date: 2016-10-12
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This technology uses an anti-locking system that helps vehicles stop at lower speeds when they get stuck on slippery roads or snow covered surfaces. It also automatically starts up again after it has passed through certain areas without stopping for too long before getting back into normal traffic conditions. By doing this, drivers can reduce their workload by reducing their effort required from navigating around obstacles such as curbs.

Problems solved by technology

Technological Problem: Current methods of controlling the operation of a vehicle's back-up hydraulic pump are manually controlled by operators or automatically operated systems without any knowledge about how they were doing this work beforehand.

Method used

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  • Auxiliary downhill control system and control method based on retarder
  • Auxiliary downhill control system and control method based on retarder
  • Auxiliary downhill control system and control method based on retarder

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Embodiment Construction

[0018] The present invention is described in detail below in conjunction with accompanying drawing:

[0019] Such as figure 1 As shown, a downhill auxiliary braking control system for a hydraulic retarder includes the following parts: brake pedal opening acquisition unit 1, accelerator pedal opening acquisition unit 2, vehicle speed acquisition unit 3, analog input interface circuit 4. CAN communication interface circuit 5, processor 6, output interface circuit 7 and retarder 8, wherein:

[0020] The brake pedal opening signal can be obtained through the brake pedal sensor.

[0021] Accelerator pedal opening signal can be obtained through accelerator pedal sensor. It can also be obtained from the accelerator pedal opening signal of the ECM (Engine Control Module) node through the CAN bus.

[0022] The vehicle speed signal can be obtained through the vehicle speed sensor, or through the CAN bus, the output shaft speed signal of the TCU (Transmission Control Unit automatic tr...

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Abstract

The invention discloses an auxiliary downhill control system and control method based on a retarder. The auxiliary downhill control system comprises a signal acquisition unit, an electronic control unit and the retarder, wherein the signal acquisition unit is used for acquiring an opening signal of a brake pedal, an opening signal of an acceleration pedal and a vehicle speed signal; the electronic control unit performs logic judgment according to the three signals and automatically starts or quits an auxiliary downhill control program; after the auxiliary downhill control program is started, the electronic control unit calculates brake torque according to the state of the vehicle and controls the retarder to output the brake torque, so that the vehicle speed is in a proper level and is not increased any more. The retarder is taken as a control object, a control system is established, control strategies are formulated, automatic starting and quitting in an auxiliary downhill mode are realized, the vehicle speed is in a proper level and is not increased any more, the active safety of the vehicle is effectively improved, and the driving burden of a driver is reduced.

Description

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Claims

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Application Information

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Owner JILIN UNIV
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