Device for supplying voltage to motor vehicle control equipment

Abstract

Disclosed is a device for supplying voltage to motor vehicle control equipment. The device includes a logical unit used for processing information, an energy unit used for driving an actuator mechanism and a voltage supply system. The logic unit and the energy unit are individually connected with power supply voltage. A switch is arranged between the logical unit and the power supply voltage connected with the logical unit, and the operating cost of the control equipment is reduced. A specified signal is output to the energy unit to drive the actuator mechanism, it is ensured that the energy unit and the actuator mechanism are in a static state when a motor vehicle stops running, excessive discharge of a motor vehicle battery is avoided to improve the service life of the motor vehicle battery, and the device for supplying the voltage to the motor vehicle control equipment has the advantages of being convenient to design, simple in structure, low in cost and simple and easy to 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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