Power supply anti-backflow system of motor controller

A motor controller and anti-backflow technology, which is applied in the direction of current collectors, emergency power arrangements, battery circuit devices, etc., and can solve problems such as power backflow

Pending Publication Date: 2019-07-16
HEFEI JUYI POWER SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] The purpose of the present invention is to provide a power supply anti-backflow system for a motor controller, which solves the problem of power backflow caused by the redundant power supply inside the controller when the KL30 signal is disconnected or lower than the set threshold, so a

Method used

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  • Power supply anti-backflow system of motor controller
  • Power supply anti-backflow system of motor controller
  • Power supply anti-backflow system of motor controller

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Embodiment Construction

[0037] Such as figure 1 As shown, the power supply anti-backflow system of the motor controller of the present invention includes a battery, a main power supply, an anti-backflow circuit, a rear-stage power supply, and a slave power supply connected in sequence, and the positive pole of the battery is also connected with a low-voltage fault judgment circuit. The output end of the circuit is respectively connected to the anti-backflow circuit and the high-voltage to low-voltage circuit, the input end of the high-voltage to low-voltage circuit is connected to the power battery, and the output end is connected to the subsequent power supply through the redundant power supply.

[0038] It also includes a CAN transceiver chip power supply circuit, the CAN transceiver chip power supply circuit is respectively connected and powered by a main power supply and a slave power supply, and the slave power supply includes a first slave power supply and a second slave power supply. The latte...

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Abstract

The invention discloses a power supply anti-backflow system of a motor controller. The power supply anti-backflow system comprises a storage battery, a main power supply, an anti-backflow circuit, a rear-stage power supply and a slave power supply which are connected in sequence, wherein the positive electrode of the storage battery is further connected with a low-voltage fault judgment circuit; the output end of the low-voltage fault judgment circuit is connected with the anti-backflow circuit and a high-voltage-to-low-voltage circuit separately; the input end of the high-voltage-to-low-voltage circuit is connected with a power battery, and the output end is connected with the rear-stage power supply through a redundant power supply; a CAN transceiver chip power supply circuit is connected with the main power supply and the slave power supply for supplying power separately; the rear-stage power supply and the slave power supply are connected through a power supply chip; and the powersupply chip is further connected with a backup power supply, and the backup power supply supplies power to the CAN transceiver chip power supply circuit. On the basis of the angle of a part controllersystem, the safety of the whole anti-backflow system can be monitored, and the safety of related functions of the whole vehicle is ensured; and when a KL15 hard wire in the whole vehicle wire harnessis broken, it is ensured that the CAN communication of the controller is normal, and the requirement of the whole vehicle can be responded in real time.

Description

technical field [0001] The invention relates to a motor controller power supply, in particular to a motor controller power supply anti-backflow system. Background technique [0002] The current anti-backflow technical solution for the power supply of the motor controller is that when the KL30 (battery positive) signal is disconnected or the undervoltage falls below the safety threshold of 9V, the low-voltage detection circuit reports a low-voltage fault, and at the same time, the low-voltage fault logic signal triggers the high-voltage to low-voltage circuit to start Work, generate redundant power supply, namely 12V, to supply power to the subsequent power supply system. [0003] According to related projects, hardware damage occurred in the on-site high-voltage to low-voltage circuit, which led to the failure of the redundant function. The 12V will be poured into the KL30 signal to supply power to the 12V system of the vehicle, and the overload condition will appear quickl...

Claims

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Application Information

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IPC IPC(8): H02J9/06H02J7/00B60L3/00
CPCH02J9/06H02J7/0029B60L3/00
Inventor 刘蕾许建豪胡宗滔苑红伟
Owner HEFEI JUYI POWER SYST CO LTD
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