Height determination for two independently suspended wheels using a height sensor for only one wheel
First Claim
1. A vehicle comprising:
- first and second wheels;
first and second suspensions including first and second control arms coupled between the respective wheels and a frame of the vehicle;
an anti-roll system coupled between the control arms;
a height sensor coupled to the first wheel sensing a first height associated with the first wheel;
a strain sensor coupled to the anti-roll system generating a strain signal in response to a strain in the anti-roll system; and
a controller converting the strain signal to a second height associated with the second wheel.
1 Assignment
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Accused Products
Abstract
Ride height for use in an adaptive suspension damping system, tiltable headlamp systems, or other systems is determined for first and second wheels which are mounted to first and second suspensions having first and second control arms coupled between the respective wheels and a frame of the vehicle. An anti-roll system is coupled between the control arms. A mechanical height sensor is coupled to the first wheel to directly sense a first height associated with the first wheel. A strain sensor is coupled to the anti-roll system to generate a strain signal in response to a strain in the anti-roll system. A controller converts the strain signal to a second height associated with the second wheel. Thus, ride heights for both wheels on opposite sides of the vehicle are obtained using only one direct height measurement.
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Citations
17 Claims
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1. A vehicle comprising:
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first and second wheels; first and second suspensions including first and second control arms coupled between the respective wheels and a frame of the vehicle; an anti-roll system coupled between the control arms; a height sensor coupled to the first wheel sensing a first height associated with the first wheel; a strain sensor coupled to the anti-roll system generating a strain signal in response to a strain in the anti-roll system; and a controller converting the strain signal to a second height associated with the second wheel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A vehicle comprising:
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two wheels; independent suspensions for the wheels including respective control arms; a stabilizer system coupled between the control arms; a height sensor coupled to one wheel sensing an associated first height; a strain sensor coupled to the stabilizer system generating a strain signal in response to a strain in the stabilizer system; and a controller converting the strain signal to a second height associated with the other wheel.
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11. A method comprising:
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directly measuring a first displacement in a suspension for a first wheel on a vehicle; measuring a strain occurring in an anti-roll system coupled between the first wheel and a second wheel; converting the strain to a height difference between the first wheel and the second wheel; and summing the height difference and the first displacement to determine a second displacement for the second wheel. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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Specification