Device for supplying voltage to motor vehicle control equipment

Abstract

A device for supplying voltage to motor vehicle control equipment, including a logic unit for processing information, an energy unit for driving actuators and a voltage supply system, the logic unit and the energy unit are separately connected to the power supply voltage, the logic unit and its A switch is set between the connected power supply voltages to reduce the operating cost of the control equipment, and the specified signal is output to the energy unit to drive the actuator, ensuring the static state of the energy unit and the actuator when the motor vehicle stops running, and avoiding excessive discharge of the motor vehicle battery , improve the service life of the motor vehicle battery, and has the advantages of convenient design, simple structure, low cost and simple control.

Description

technical field [0001] A device for supplying voltage to motor vehicle control equipment belongs to the field of motor vehicle power supply. Background technique [0002] Motor vehicles are equipped with a large number of control devices, which are interconnected to a data bus. In the group of control devices connected through the data bus, if one of the control devices fails to report its inactive state to the data bus due to a certain defect or repeatedly sends a wake-up signal to other control devices connected to the data bus, it will generate a higher than off state. More energy consumption, the energy consumed will form a high load on the motor vehicle battery, resulting in excessive discharge of the battery. For a single control device, the control device is usually composed of a logic unit and an energy unit. In a traditional voltage system, the logic unit and the energy unit are powered by a common cable, that is, the total current generated by all devices is carri...

AI Technical Summary

Problems solved by technology

In the group of control devices connected through the data bus, if one of the control devices fails to report its inactive state to the data bus due to a certain defect or repeatedly sends a wake-up signal to other control devices connected to the data bus, it will generate a higher than off state. More energy consumption, the energy consumed will form a high load on the motor vehicle battery, resulting in excessive discharge of the battery

For a single control device, the control device is usually composed of a logic unit and an energy unit. In a traditional voltage system, the logic unit and the energy unit are powered by a common cable, that is, the total current generated by all devices is carried by one cable. Therefore, the data bus needs to carry the maximum amount of current that the respective cable can carry, resulting in higher operating costs

[0003] Based on this, aiming at the high energy consumption and high cost existing in the voltage supply of the existing vehicle control equipment, the present invention provides a system with convenient design, simple structure, low cost, and simple control, so as to reduce as much as possible Reasonably caused high energy consumption and high operating costs

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