Method and apparatus for emergency braking performance testing, evaluation and/or driver training
First Claim
1. A system for evaluation of driver braking performance under emergency conditions, comprising:
- a driver measuring unit including a force measuring means and a communications means, the driver measuring unit being adapted for attachment to a road vehicle brake applicator interface and being operative to generate force measurement data representative of force applied by the driver to the brake applicator during an evaluation period and to transmit the force measurement data using the communications means;
a vehicle measuring unit, in use carried by the vehicle, having a motion measuring means adapted to determine vehicle measurements comprising one or more of the vehicle acceleration, velocity and position, and a communications means, the vehicle measuring unit being operative to generate vehicle measurement data during the evaluation period and transmit the vehicle measurement data using the communications means; and
a processor unit having a display screen, and communications means, wherein the processor unit is operative to receive via the communications means the force measurement data generated by the driver measuring unit and the vehicle measurement data generated by the vehicle measuring unit, and generate braking test result metrics therefrom for display on the display screen;
the system characterized in that;
the force measuring means is adapted to provide a timing trigger for the evaluation period;
the motion measuring means comprises a combination of an inertial measurement unit for determining acceleration/deceleration measurements and a GPS receiver configured for determining one or a combination of distance/positional measurements and velocity measurements based on the Doppler-effect on a GPS carrier signal; and
the processor unit is operative to enable selection of braking test parameters and to provide signals to the driver during a braking test procedure for the driver to act upon the provided signals and wherein the braking test result metrics comprise one or a combination of;
driver reaction time;
vehicle stop time;
vehicle stop distance;
brake pedal force;
vehicle acceleration/deceleration; and
,vehicle speed.
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Accused Products
Abstract
The present invention relates to testing and evaluation of motorised wheeled vehicles and the evaluation of drivers of motorised wheeled vehicles including a system for evaluation of driver braking performance. The system may include a driver measuring unit including a force measuring means being operative to generate force measurement data representative of force applied by the driver to the brake applicator and a communication means, a vehicle measuring unit having a motion measuring means adapted to determine vehicle measurements and a communication means, and a processor unit having a display screen, and communications means, wherein the processor unit is operative to receive via the communications means the force measurement data generated by the driver measuring unit and the vehicle measurement data generated by the vehicle measuring unit, and generate brake test result metrics therefrom for display on the display screen.
5 Citations
19 Claims
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1. A system for evaluation of driver braking performance under emergency conditions, comprising:
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a driver measuring unit including a force measuring means and a communications means, the driver measuring unit being adapted for attachment to a road vehicle brake applicator interface and being operative to generate force measurement data representative of force applied by the driver to the brake applicator during an evaluation period and to transmit the force measurement data using the communications means; a vehicle measuring unit, in use carried by the vehicle, having a motion measuring means adapted to determine vehicle measurements comprising one or more of the vehicle acceleration, velocity and position, and a communications means, the vehicle measuring unit being operative to generate vehicle measurement data during the evaluation period and transmit the vehicle measurement data using the communications means; and a processor unit having a display screen, and communications means, wherein the processor unit is operative to receive via the communications means the force measurement data generated by the driver measuring unit and the vehicle measurement data generated by the vehicle measuring unit, and generate braking test result metrics therefrom for display on the display screen;
the system characterized in that;the force measuring means is adapted to provide a timing trigger for the evaluation period; the motion measuring means comprises a combination of an inertial measurement unit for determining acceleration/deceleration measurements and a GPS receiver configured for determining one or a combination of distance/positional measurements and velocity measurements based on the Doppler-effect on a GPS carrier signal; and the processor unit is operative to enable selection of braking test parameters and to provide signals to the driver during a braking test procedure for the driver to act upon the provided signals and wherein the braking test result metrics comprise one or a combination of; driver reaction time; vehicle stop time; vehicle stop distance; brake pedal force; vehicle acceleration/deceleration; and
,vehicle speed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for evaluation of driver braking performance under emergency conditions, comprising:
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equipping a vehicle with a driver measuring unit a force measuring means adapted for attachment to a road vehicle brake applicator interface of the vehicle and being operative to generate force measurement data representative of force applied by the driver to the brake pedal applicator during an evaluation period wherein the driver measuring unit is adapted for transmitting the force measurement data using a communications means of the driver measuring unit; equipping the vehicle with a vehicle measuring unit that includes a motion measuring means adapted to determine vehicle measurements comprising one or more of the vehicle acceleration, velocity and position, the vehicle measuring unit being operative to generate vehicle measurement data during the evaluation period and for transmitting the vehicle measurement data using a communications means of the vehicle measuring unit, the method characterized in that; the force measuring means is adapted to provide a timing trigger for the evaluation period; the motion measuring means comprises a combination of an inertial measurement unit for determining acceleration/deceleration measurements and a GPS receiver configured for determining one or a combination of distance/positional measurements and velocity measurements based on the Doppler-effect on a GPS carrier signal, and the method further comprises the steps of; selecting braking test parameters; initiating a braking test by providing signals to the driver in the evaluation period for the driver to act upon the provided signals; receiving via the communications means, the force measurement data generated by the driver measuring unit and the vehicle measurement data generated by the vehicle measuring unit; generating braking test result metrics from the received measurement data wherein the braking test result metrics comprise one or a combination of; driver reaction time; vehicle stop time; vehicle stop distance; brake pedal force; vehicle acceleration/deceleration; and
,vehicle speed; and displaying the generated braking test result metrics. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification