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Control method for upper oil pump frequency converter DCAC of electric sanitation truck

A control method and frequency converter technology, applied in cleaning methods, road surface cleaning, construction, etc., can solve problems such as high failure rate, inability of the vehicle controller to obtain DCAC feedback information of the frequency converter, failure to diagnose DCAC faults of the frequency converter, etc., to achieve Improved stability and scalability, improved reliability and maintainability, and convenient and quick fault diagnosis

Inactive Publication Date: 2014-05-07
BEIJING ZHIXING HONGYUAN AUTOMOBILE CO LTD
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AI Technical Summary

Problems solved by technology

The bodywork motor operation panel is a hardware input signal, the failure rate is high, and the driver cannot obtain the cause of the shutdown when a failure occurs
In addition, the existing inverter DCAC control technology basically adopts a hard-wired open-loop control method, and the vehicle controller cannot obtain the feedback information of the inverter DCAC, so it is impossible to perform fault diagnosis on the inverter DCAC

Method used

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  • Control method for upper oil pump frequency converter DCAC of electric sanitation truck

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Embodiment Construction

[0027] According to the DCAC control method of the top-mounted oil pump frequency converter of the electric sanitation vehicle described in the embodiment of the present invention, when the vehicle is in a normal state, according to the high and low voltage power-on situation of the vehicle control system, the top-mounted oil pump frequency converter DCAC feedback state, follow the steps below to control the top-mounted Oil pump inverter DCAC for control:

[0028] Step 1) The vehicle control system is powered on with low voltage, and the vehicle controller is powered on and initialized. After the initialization is completed, the vehicle controller sends the low-voltage relay pull-in command, and the low-voltage relay sends the upper-mounted oil pump inverter controller through a hard wire. powered by;

[0029] Step 2) The vehicle controller receives the vehicle signals through the hardware interface or the vehicle CAN network, such as: oil pump motor work request signal, accel...

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Abstract

The invention relates to a control method for an upper oil pump frequency converter DCAC of an electric sanitation truck. The control method introduces frequency converter DCAC fault state feedback while achieving effective control over the upper oil pump frequency converter DCAC in a CAN communication way, and achieves failure diagnosis of the frequency converter DCAC and fault code management. The control method has the benefits as follows: according to lots of tests on real trucks, compared with traditional hard wire open loop control, the control method remarkably improves the stability and expansibility of a whole truck upper system through a CAN communication and state reaction control method; through fault state signals, the failure diagnosis of the upper system is achieved conveniently and fast so as to facilitate troubleshooting of after-sales personnel and improve the reliability and maintainability of the upper system.

Description

technical field [0001] The invention belongs to the technical field of equipment control on top of an electric sanitation vehicle, and in particular relates to a DCAC control method for an oil pump inverter on an electric sanitation vehicle. Background technique [0002] With the increasing shortage of international crude oil resources and the increasingly stringent requirements on vehicle emissions caused by environmental pollution, new energy vehicles have gradually become a core research and development direction of major automobile manufacturers. In the "Twelfth Five-Year Plan", the development of new energy vehicles has become a key development project of the country, which has received great attention and strong support from the country. The national high-tech research and development plan (863 plan) also focuses on new energy vehicles and related projects, fully supporting the development of new energy vehicles and related industries. Under the guidance of various pr...

Claims

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Application Information

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IPC IPC(8): E01H1/00
Inventor 李忠志张君鸿姜炜王帅宇
Owner BEIJING ZHIXING HONGYUAN AUTOMOBILE CO LTD
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