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An electric vehicle actuator control system

A technology for electric vehicles and control systems, which is applied to electric vehicles, vehicle components, electrical devices, etc., can solve problems such as power interruption, and achieve the effects of simple structure, low cost, and improved reliability and safety.

Inactive Publication Date: 2019-03-26
DONGGUAN POWERWISE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides an electric vehicle actuator control system to solve the problem of power interruption during the MCU reset process

Method used

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  • An electric vehicle actuator control system
  • An electric vehicle actuator control system
  • An electric vehicle actuator control system

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] figure 1 It is a system schematic diagram of an electric vehicle actuator control system provided by Embodiment 1 of the present invention. Such as figure 1 As shown, the embodiment of the present invention provides an electric vehicle actuator control system, which can latch the state of the actuator through the control of the latch circuit module in the system, and solve the problem of power interruption caused by the MCU being disturbed and reset during the driving process of the electric vehicle. question.

[0035] The control system includes an embedded processing module 10, a drive circuit module 30 and an actuator circuit module 40, and also includes: a latch circuit module 20, wherein:

[0036] The embedded processing module 10 is configured to output a relay control signal and a latch enable signal according to an operation strategy; the latch circuit module 20 includes a latch logic unit 201 connected to the embedded processing module 10 for The relay contr...

Embodiment 2

[0053] image 3 It is a schematic diagram of an electric vehicle actuator control system provided by Embodiment 2 of the present invention.

[0054] The latch circuit module 20 includes a latch logic unit 201 and also includes a slow start control unit 202 .

[0055] The slow start control unit 202 is connected to the latch logic unit 201, and is used for delaying output of an output enable signal that controls the latch logic unit 201 to perform normal output when the system is powered on and off quickly;

[0056] The latch logic unit 201 is further configured to output the input relay control signal from the output terminal when receiving the output enable signal.

[0057] The latch circuit unit 201 and the slow start control unit 202 are connected through an output enable terminal, and have a common working power supply and working ground.

[0058] The slow start control unit 202 includes:

[0059] The first resistor R3 and the NMOS transistor Q1 are connected in series ...

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PUM

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Abstract

The invention discloses an electric automobile actuator control system which comprises an embedded processing module, a driving circuit module and an actuator circuit module, and further comprises a latch circuit module, wherein the embedded processing module is used for outputting a relay control signal and a latch enabling signal according to an operation strategy; the latch circuit module comprises a latch logic unit and is used for transmitting the relay control signal to the driving circuit module and latching the relay control signal when receiving the latch enabling signal; the driving circuit module is used for generating a driving signal according to the input relay control signal and transmitting the driving signal to a relay in the actuator circuit module; and the actuator circuit module is used for controlling the opening or closing of the relay according to the received driving signal so as to control an operation state of a motor. The control system disclosed by the invention improves the reliability and safety of actuator control, and is simple in structure and low in cost.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of electric vehicles, in particular to an actuator control system for electric vehicles. Background technique [0002] Electric vehicles generally supply power to electrical equipment such as electric motors from lithium-ion battery packs, so that the electric motor drives the car. As a bridge between lithium-ion battery packs and electrical equipment, high-voltage relays have important safety implications. High-voltage relay control is generally directly controlled by a Microcontroller Unit (MCU, also known as an embedded processing module), a general purpose input and output port (General Purpose Input Output, GPIO) and a drive circuit module of the relay. The MCU generates a control signal according to the operation strategy, and transmits it to the driving circuit module through the GPIO, and then the driving circuit module converts it into a driving signal of the relay. The relay...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L3/00
CPCB60L3/0023
Inventor 林田生
Owner DONGGUAN POWERWISE TECH CO LTD