Electronic speed regulator and actuator drive circuit for diesel engine duplicated hot-redundancy

A technology of dual-machine hot backup and electronic governor, which is applied in the direction of mechanical equipment, machine/engine, engine control, etc., can solve the problem of not accurately mentioning the driving requirements of double-coil actuators, and achieve high reliability and realization The effect of fault isolation

Active Publication Date: 2016-08-10
HARBIN ENG UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

There are many patents in the published literature that mention the concept of dual-system hot backup, but these patents are fundamentally different from this patent in terms of application fields and system performance requirements; Backup diesel electronic governor, but does not exactly mention the drive requirements of the above-mentioned dual-coil actuators

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  • Electronic speed regulator and actuator drive circuit for diesel engine duplicated hot-redundancy
  • Electronic speed regulator and actuator drive circuit for diesel engine duplicated hot-redundancy
  • Electronic speed regulator and actuator drive circuit for diesel engine duplicated hot-redundancy

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] The invention provides a dual-machine hot backup electronic speed regulator actuator drive circuit, which is mainly composed of a controller end drive circuit part and a drive transfer control circuit. The drive circuit at the controller side includes optocoupler G1, MOS tube Q1, a Zener diode Z1, freewheeling diode D2, voltage dividing resistors R1, R4 and current limiting resistors R2, R3; the drive transfer control circuit includes MOS tube Q2, Q3, coil drive selection chip U5, diodes D1, D3, current limiting resistors R5, R9, two data selectors U1 and U4, an edge D flip-flop U2, a dual-input AND gate U3 and pull-up resistors R7, R8. The present invention proposes a diesel engine dual engine hot backup electronic governor actuator drive circuit, the input end of the optocoupler G1 is connected with the PWM signal of the single chip microcomputer, and the out...

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Abstract

The invention relates to an electronic speed regulator and actuator drive circuit for diesel engine duplicated hot-redundancy. The electronic speed regulator and actuator drive circuit for the diesel engine duplicated hot-redundancy is composed of a controller end drive circuit part and a drive adapter plate. The controller end drive circuit comprises a first optical coupler, a first MOS tube, a first voltage stabilizing diode, a second freewheel diode, a first divider resistor, a fourth divider resistor, a second current-limiting resistor and a third current-limiting resistor. The drive adapter plate comprises a drive circuit part and a logic control circuit part. The drive adapter plate end drive circuit comprises a second MOS tube, a third MOS tube and a fifth coil drive selective chip. The core of achieving the fault loop passive cutting-out function is edge D triggers and eight-to-one data selectors, and reliable output of a control loop can be guaranteed through the latch function of the edge D trigger. A control circuit of a control adapter part is achieved through a simulator, and reliability is high.

Description

technical field [0001] The invention relates to a driving circuit for an actuator of an electronic governor for dual-engine hot backup of diesel engines. Background technique [0002] The development of diesel engine has a history of hundreds of years, and it has been widely used because of its high thermal efficiency, wide power range, good adaptability and other advantages. The dual-machine hot backup electronic governor can improve the reliability of the electronic governor, and the diesel engine can run continuously without stopping in case of a fault. The drive of the double-coil actuator is an important link of the dual-machine hot backup electronic governor. The characteristic of the double-coil actuator is that an actuator is composed of two coils, and the two coils can work independently to drive the pull rod of the actuator. The dual-machine hot backup electronic speed controller has the following requirements for the actuator: firstly, the two-way coils can be dr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D1/10
CPCF02D1/10
Inventor 宋恩哲赵国锋孙军姚崇杨立平
Owner HARBIN ENG UNIV
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