Accelerator control apparatus
First Claim
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1. An accelerator control apparatus for an electronic drive control system for an internal combustion engine, said apparatus comprising:
- pedal means adapted to be rotated from a first position to another position;
shaft means;
bias spring means normally biasing said pedal means in said first position;
position sensor means rotatively coupled to said shaft means for generating a first electrical signal indicative of the angle of rotation thereof;
pressure switch means coupled to said pedal means and responsive to pressure applied to pivot said pedal means for generating a second electrical signal indicative of said pedal means in said first position; and
friction means at the end of said shaft means, providing friction forces to said shaft means for damping the rotation of said shaft means.
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Accused Products
Abstract
An accelerator control apparatus for mounting in a motor vehicle for a "drive-by-wire" system. The apparatus provides a bias spring means to generate the "feel" of an accelerator pedal to the vehicle operator, a compression spring means provides frictional forces preventing extraneous pedal actuation and pedal sensor switch means for indicating the rotation position of the accelerator pedal from a first or normal position to any second position.
45 Citations
8 Claims
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1. An accelerator control apparatus for an electronic drive control system for an internal combustion engine, said apparatus comprising:
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pedal means adapted to be rotated from a first position to another position; shaft means; bias spring means normally biasing said pedal means in said first position; position sensor means rotatively coupled to said shaft means for generating a first electrical signal indicative of the angle of rotation thereof; pressure switch means coupled to said pedal means and responsive to pressure applied to pivot said pedal means for generating a second electrical signal indicative of said pedal means in said first position; and friction means at the end of said shaft means, providing friction forces to said shaft means for damping the rotation of said shaft means.
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2. An accelerator control apparatus for an electronic drive control system for an internal combustion engine, said apparatus comprising:
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a housing; accelerator pedal control means; shaft means journalled in said housing; coupling means for coupling said accelerator pedal control means to said shaft means; bias spring means operable to bias said accelerator pedal control means in a first position, one end of said bias spring means coupled to said accelerator pedal control means and the other end of said bias spring means secured to said housing; pedal sensor switch means responsive to said accelerator pedal control means in said first position for generating a first electrical signal indicative of said pedal control means in said first position; and position sensor means operable to generate a second electrical signal to indicate a second position of said accelerator pedal control means as said accelerator pedal control means rotates from said first position to said second position, and a friction-creating mechanism that is active on said shaft means for damping rotation of said shaft means.
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3. An accelerator control apparatus connected to an accelerator pedal for an internal combustion engine, said apparatus comprising:
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a housing; coupling means coupled to said housing and the accelerator pedal and mounted for rotation from a first position to one of a plurality of second positions; shaft means journalled in said housing and adapted to be rotated by said coupling means; bias spring means coupled to said shaft means and operable to bias said coupling means in said first position; sensor means responsive to said coupling means in said first position for generating a first electrical signal and when said coupling means is in said second position for generating a third electrical signal; and means responsive to the rotation of said shaft means in response to said coupling means for generating a second electrical signal indicating the amount of rotation from said first position to said second position. - View Dependent Claims (4, 5, 6, 7, 8)
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Specification