Electromagnetic suspension bracket adjusting controller

A technology for adjusting controllers and suspensions, applied in general control systems, electrical testing/monitoring, control/adjustment systems, etc., can solve the problem of low precision of PWM drive control, inability to realize the combination of software and hardware, and small processor throughput and other problems, to achieve the effects of no real-time performance, integration and compatibility, and simplified circuit design

Inactive Publication Date: 2016-11-09
安庆新景技电子科技有限公司
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Problems solved by technology

In the prior art, an 8-bit single-chip microcomputer is used as the ECU controller, but the sampling resolution of the input signal is not high, the processor has a low throughput and a low main frequency resulting in a low response speed, the PWM drive control precision is not high, and it is impossible to realize the software and hardware phase. Combined fault diagnosis and system safety monitoring measures

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  • Electromagnetic suspension bracket adjusting controller

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Embodiment Construction

[0020] The present invention will be described in detail below in conjunction with accompanying drawing:

[0021] Such as figure 1Shown is a functional block diagram of an ECU controller hardware system provided by the preferred embodiment of the present invention. It consists of signal conditioning, power supply and system management, processor unit, actuator drive control, fault diagnosis and safety processing, CAN communication interface and other modules. The MC9S12XET256 single-chip microcomputer chip of the new-generation dual-core microprocessor of Freescale's preferred ECU controller embodiment of the invention, this single-chip processor has all the advantages and effects of 32-bit performance and 16-bit MCU, while retaining Freescale The existing 16-bit S12 and S12X cores have the characteristics of low cost, low power consumption, EMC and high code rate. They are processor chips specially used in automotive chassis safety and body control. The BDM interface is the...

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Abstract

The invention relates to an electromagnetic suspension bracket adjusting controller. The controller is characterized in that an ECU power supply management module and a fault diagnosis and security processing module are connected with a processor. A signal acquisition module includes an acceleration sensor and a signal conditioning circuit; and a sensor signal is amplified and filtered and then is inputted to the processor. A magneto-rheological damper drive control module consists of an executer power management circuit, a PWM drive output control circuit, and an executer current feedback circuit and is used for amplifying a PWM waveform outputted by the processor, outputting a target current, controlling an electromagnetic coil of the magneto-rheological damper, and feeding back a practical current of the electromagnetic coil in real time to the processor; and the outputted current is compensated by closed-loop control, so that the practical working current is close to a target value. According to the invention, the controller has the following beneficial effects: the controller has advantages of fast response speed, high output precision, and low power consumption and has a communication function; and the controller can adapt to an automobile-level complicated working condition environment.

Description

technical field [0001] The invention relates to an electronically controlled semi-active or active suspension ECU controller, mainly an electromagnetic suspension adjustment controller. Background technique [0002] Magnetorheological Fluid (MR Fluid for short) is a kind of intelligent material mixed with tiny soft magnetic particles with high magnetic permeability and low magnetic hysteresis and non-magnetic permeable liquid. Under the action of an external magnetic field, the rheological properties of the magnetorheological fluid change, and change with the change of the external magnetic field intensity. Because the rheology of magnetorheological fluid under the action of a magnetic field is instantaneous and reversible, and its shear yield strength after rheology has a stable corresponding relationship with the magnetic field strength, it is widely used in automobiles, buildings, bridges, machinery, etc. and military fields. [0003] Car suspension refers to the entire...

Claims

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Application Information

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IPC IPC(8): G05B23/02
CPCG05B23/0208
Inventor 张超
Owner 安庆新景技电子科技有限公司
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