Four-wheel steering automobile

Four-wheel steering automobile

  • CN 102,248,964 A
  • Filed: 05/30/2011
  • Published: 11/23/2011
  • Est. Priority Date: 05/30/2011
  • Status: Active Grant
First Claim
Patent Images

1. four-wheel steering automobile, comprise vehicle frame, bearing circle, front and back wheel, petrol storage tank stores and provides and reclaim hydraulic oil to boost pump, bearing circle control boost pump, boost pump is to hydraulic actuating cylinder output and reclaim hydraulic oil, piston in hydraulic cylinder moves and drives steering track rod under the effect of hydraulic oil, and then drives wheel steering;

  • It is characterized in that;

    described hydraulic actuating cylinder has four, and promptly anterior two, two at rear portion;

    The piston at front steering track-rod two ends place respectively horizontally set about before two in the hydraulic actuating cylinders, the configuration information collection point, front steering track-rod middle part before two between hydraulic actuating cylinders, its correspondence position is provided with front sensor;

    The piston at back steering track rod two ends place respectively horizontally set about in the two back hydraulic actuating cylinders, the back steering track rod middle part configuration information collection point of two backs between hydraulic actuating cylinders, its correspondence position is provided with the back sensor;

    Oil circuit between boost pump and hydraulic actuating cylinder is provided with electromagnetic valve, electromagnetic valve comprises bidirectional electromagnetic valve and single channel electromagnetic valve, bidirectional electromagnetic valve is imported by the oil circuit on the boost pump, and the oil circuit on hydraulic actuating cylinder right wing/left road behind the oil circuit of two preceding hydraulic actuating cylinders of control output left side road/right wings and two, the single channel electromagnetic valve is by the oil circuit input of preceding hydraulic actuating cylinder left side road/right wing, and the oil circuit of hydraulic actuating cylinder left side road/right wing after two of the control outputs, the oil circuit on two preceding hydraulic actuating cylinder right wing/left roads exports boost pump to;

    Two electromagnetic valves are controlled by control circuit, and two sensors provide the position signal of steering track rod to control circuit, and control circuit control bidirectional electromagnetic valve and single channel electromagnetic valve are swung to, opened or close when the front and back wheel normotopia.

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