Electrical power steering apparatus
a technology of electric power steering and electric motor, which is applied in the direction of electric devices, battery/fuel cell control arrangements, electric devices, etc., can solve the problems of unfavorable safe and smooth escape from the accident point, and achieve the effects of increasing the current limit flow, maintaining the safety of the driver, and smooth steering operation
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[0019]An electrical power steering apparatus installed in a vehicle according to one embodiment of the present invention will be explained hereinafter in referring to FIGS. 1 to 4.
[0020]FIG. 1 is a schematic diagram showing summary constructions of the one embodiment of the electrical power steering apparatus according to the present invention. The electrical power steering apparatus 10 includes an electrical motor 1, a reduction gear mechanism 2, a torque sensor 3, a vehicle speed sensor 4, a motor rotation angle sensor 5 (referred as the rotation angle sensor hereinafter) and an electronic control unit 6 (referred as the ECU hereinafter). The electrical power steering apparatus 10 is a column assisted type electrical power steering apparatus.
[0021]As shown in FIG. 1, a steering wheel 101 is fixed to one end of a steering shaft 102, and the other end of the steering shaft 102 is meshed with a rack shaft 104 through a rack and pinion mechanism 103. Both ends of the rack shaft 104 ar...
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