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Motor drive circuit for automated mechanical transmission (AMT) controller

A motor drive circuit and motor drive technology, applied in control systems, motor control, electrical components, etc., can solve problems such as large space, difficult motor working state and speed changes, unfavorable layout and wiring, etc., to simplify circuit design, Save layout space, easy to debug effects

Inactive Publication Date: 2013-04-24
WUHU BETHEL AUTOMOTIVE SAFETY SYST
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

And as a safety component, in the AMT controller, the detection of the fault state of the motor is also particularly important. The existing discrete components of the drive circuit occupy a large space, which is not conducive to layout and wiring; and the three-way motor is directly controlled by PWM. , it is not easy to control the working state and speed change of the motor

Method used

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  • Motor drive circuit for automated mechanical transmission (AMT) controller
  • Motor drive circuit for automated mechanical transmission (AMT) controller

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Embodiment Construction

[0017] The invention improves the integration degree of the electric control system, enhances the effective control of the running state of the motor, and improves the fault detection of the motor.

[0018] like figure 1 , figure 2 As shown, the present invention includes a motor power supply unit 1 , a motor drive unit 2 , and a motor failure detection unit 3 . Among them, the motor power supply unit 1 provides working power and power reverse connection protection for the entire motor drive circuit; the motor drive unit 2 is composed of two half-bridge drive chips 5 integrating high-side switches and low-side switches and a logic processing circuit 6. The processing circuit 6 converts the control signal output by the control chip into a signal for driving the half-bridge, controls the high-side switch or the low-side switch in the half-bridge driving chip 5 to be turned on, and then controls the forward rotation, reverse rotation and braking of the motor 4; The motor fault...

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PUM

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Abstract

The invention discloses a motor drive circuit for an automated mechanical transmission (AMT) controller. The motor drive circuit for the AMT controller is characterized in that a motor power supply unit is connected with a motor drive unit to drive a motor to work, the motor drive unit is composed of two half-bridge drive chips and a logic processing circuit, a high-side switch and a low-side switch are integrated on each half-bridge drive chip, through the logic processing circuit, control signals which control the output of the chips are transferred into signals which drive a half bridge, the signals control the connectivity of the high-side switches and the low-side switches in the two half-bridge drive chips, and furthermore, corotation, inversion and braking of the motor are controlled. The motor drive circuit for the AMT controller is simplified in circuit structure so that control on changes of working state and rotating speed of the motor is achieved.

Description

technical field [0001] The invention relates to an electronically controlled mechanical automatic transmission, in particular to a motor drive circuit for an AMT controller. Background technique [0002] Electronically controlled mechanical transmission (Automated Mechanical Transmission referred to as AMT) is to control the shifting mechanism by adding an AMT controller under the condition that the basic structure of the original mechanical transmission remains unchanged. Gear and gear shift and engine speed synchronous adjustment and other operations, and ultimately achieve automatic shifting. For the AMT controller, the motor drive circuit directly affects the stability and reliability of the transmission. Therefore, a complete motor drive circuit is an important guarantee for achieving shifting comfort and smoothness. [0003] However, AMT products in the current state of the art, especially domestically produced AMT products, have not been maturely applied. As an indi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P29/00
Inventor 刘兆勇张升曹阿娜何湘冯宝存
Owner WUHU BETHEL AUTOMOTIVE SAFETY SYST
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