Electronic brake controller
First Claim
Patent Images
1. A brake controller comprising:
- a three axis acceleration sensor that generates three deceleration signals that are associated with three sensor orthogonal axes and up to three correction deceleration signals when the towing vehicle is stationary; and
a power control circuit adapted to be connected between a towing vehicle power supply and a set of electrically actuated trailer brakes, said power control circuit electrically connected to said three axis acceleration sensor, said power control circuit including a microprocessor, said microprocessor receiving said three deceleration signals and said correction deceleration signals, said microprocessor responsive to said correction deceleration signals to compensate said deceleration signals for any misalignment between said sensor orthogonal axes and three towing vehicle orthogonal axes, said microprocessor further responsive to said compensated deceleration signals to generate a towing vehicle composite deceleration signal, said power control circuit further responsive to said composite deceleration signal to supply a current to said set of trailer brakes that is proportional to said towing vehicle compensated deceleration signal.
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Abstract
A controller for electric trailer brakes that includes a three axis accelerometer for detecting deceleration of a towing vehicle and an interactive liquid crystal display controlled by a plurality of pushbuttons.
68 Citations
10 Claims
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1. A brake controller comprising:
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a three axis acceleration sensor that generates three deceleration signals that are associated with three sensor orthogonal axes and up to three correction deceleration signals when the towing vehicle is stationary; and a power control circuit adapted to be connected between a towing vehicle power supply and a set of electrically actuated trailer brakes, said power control circuit electrically connected to said three axis acceleration sensor, said power control circuit including a microprocessor, said microprocessor receiving said three deceleration signals and said correction deceleration signals, said microprocessor responsive to said correction deceleration signals to compensate said deceleration signals for any misalignment between said sensor orthogonal axes and three towing vehicle orthogonal axes, said microprocessor further responsive to said compensated deceleration signals to generate a towing vehicle composite deceleration signal, said power control circuit further responsive to said composite deceleration signal to supply a current to said set of trailer brakes that is proportional to said towing vehicle compensated deceleration signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification