Controller for steering apparatus
First Claim
1. A controller for a steering apparatus whereinsaid steering apparatus comprises a tilting mechanism adjusting a tilting angle of a steering wheel, and an electrical motor driving the tilting mechanism;
- said controller comprises an arithmetic member defining a predetermined relationship between said tilting angle and a supplying current to said electrical motor so that an operating velocity of the tilting mechanism is constant;
said controller controls said supplying current to said electrical motor by using said arithmetic member;
said arithmetic member includes maps defining a predetermined relationship between said tilting angle and said supplying current to said electrical motor;
said maps include a first current map that defines the predetermined relationship between said tilting angle and said supplying current to said motor for increasing the tilting angle, and a second current map that defines the predetermined relationship between said tilting angle and said supplying current to said motor for decreasing the tilting angle; and
said supplying current defined by the second current map is smaller than said supplying current defined by the first current map.
1 Assignment
0 Petitions
Accused Products
Abstract
It is an object of the present invention to provide a controller for a steering apparatus having easy operation of an adjustment of a tilting angle.
The steering apparatus comprises a tilting mechanism adjusting a tilting angle of a steering wheel, and an electrical motor driving the tilting mechanism. The controller for the steering apparatus 1 detects the tilting angle based on a rotational angle of the screw shaft. The controller defines the predetermined supplying current according to the detected amount of the tilting angle as the supplying current to the electrical motor.
18 Citations
5 Claims
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1. A controller for a steering apparatus wherein
said steering apparatus comprises a tilting mechanism adjusting a tilting angle of a steering wheel, and an electrical motor driving the tilting mechanism; -
said controller comprises an arithmetic member defining a predetermined relationship between said tilting angle and a supplying current to said electrical motor so that an operating velocity of the tilting mechanism is constant; said controller controls said supplying current to said electrical motor by using said arithmetic member; said arithmetic member includes maps defining a predetermined relationship between said tilting angle and said supplying current to said electrical motor; said maps include a first current map that defines the predetermined relationship between said tilting angle and said supplying current to said motor for increasing the tilting angle, and a second current map that defines the predetermined relationship between said tilting angle and said supplying current to said motor for decreasing the tilting angle; and said supplying current defined by the second current map is smaller than said supplying current defined by the first current map. - View Dependent Claims (2, 3, 4, 5)
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Specification