Control integrated system for retarder

Abstract

The invention discloses a control integrated system for retarder. The control integrated system for retarder comprises a retarder, wherein the retarder is connected and controlled by a vehicle body control module; signals required by the vehicle body control module for controlling the retarder are interacted through CAN bus and vehicle body bus instruments; the vehicle body control module is also used for completing the control on logical operation and controlling the retarder to start or close according to the logic result. According to the invention, an independent retarder controller is cancelled, a vehicle speed sensor special for the retarder is cancelled, an accelerator switch special for the retarder is cancelled, the signals required by the vehicle body control module for controlling the retarder are interacted through CAN bus and vehicle body bus instruments and the vehicle body control module is also used for completing the control on logical operation and controlling the control power of the retarder to start or close so as to realize the logic control required by the retarder, and therefore, the system structure is greatly simplified, the mounting operation is simplified, the system reliability is increased, the calculating schedule is increased and higher economic benefit and social benefit are generated.

Description

technical field [0001] The invention relates to retarder control, in particular to a retarder control integrated system. Background technique [0002] According to the working characteristics of the retarder, the working effect of the retarder is not obvious at low speeds. In order to save electric energy, the retarder is controlled not to work when the vehicle speed is lower than 5km / h; at the same time, when the accelerator pedal is stepped on and the vehicle speed has an acceleration intention Turn off the retarder; turn off the retarder when the ABS is working. figure 1 It is a block diagram of the traditional retarder control structure. In the traditional technical scheme, the retarder is independently installed with a vehicle speed sensor, an independent accelerator switch, and a dedicated retarder controller. The retarder controller completes the calculation and control of the retarder control logic. The original scheme has a complex system structure, many system com...

AI Technical Summary

Problems solved by technology

figure 1 It is a block diagram of the traditional retarder control structure. In the traditional technical scheme, the retarder is independently installed with a vehicle speed sensor, an independent accelerator switch, and a dedicated retarder controller. The retarder controller completes the calculation and control of the retarder control logic. The original scheme has a complex system structure, many system components, and a high failure rate, which is inconvenient for OEMs to install

In order to ensure general use, the original controller has poor speed calculation accuracy, resulting in poor retarder control accuracy

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