G - Physics – 01 – P
Patent
G - Physics
01
P
354/18
G01P 15/08 (2006.01) G01P 15/12 (2006.01)
Patent
CA 1210152
ABSTRACT VEHICLE MONITORING DEVICE A vehicle monitoring device 10 consists of a damped-pendulum transducer 12 coupled to a potentiometer 14. The analogue output of the potentiometer 14, following a braking test with the vehicle concerned, is sampled in a peak/trough detector 16. A micro- processor 18 comprising signal processing unit 20 and arithmetic unit 22 controls the sampling and sums, averages and displays the output of microprocessor 18 on a digital display 24. If desired, a suitably programmed small computer may be used in place of microprocessor 18. According to one aspect of the invention, the device 10 is adapted to serve as a brake-efficiency meter. In this case, the display 24 will be arranged to display the average, or currently-measured, deceleration, as the case may be. In an alternative application, the device 10 is adapted to serve as a safe-slope meter. In this case, the display 24 will be arranged to display the safe-slope limit in degrees and the device will preferably also be operable to give audio and/or visual warnings to the driver of the vehicle when the angle of the vehicle reaches some predetermined relationship with the critical descent angle.
429391
Owen Gwilym M.
Spencer Henry B.
Fetherstonhaugh & Co.
National Research Development Corporation
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