Method for controlling the speed of a motor vehicle in accordance with risk and system for carrying out the method
First Claim
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1. A method for controlling the speed of a vehicle in accordance with risk, the method comprising the steps of:
- computing a pregiven trip route for said vehicle which includes a plurality of speed-dependent trip segments;
detecting the instantaneous speed of said vehicle;
detecting risk elements during the trip for each one of said trip segments;
computing the current one of said speed-dependent trip segments from said trip route;
evaluating each one of said determined risk elements of said one speed-dependent trip segment as to the specific risk potential of said one risk element while considering the dangers thereof and said instantaneous speed of said vehicle;
computing an integral risk potential for said one speed-dependent trip segment from a sum of the specific risk potentials of all of the detected risk elements for said one speed-dependent trip segment; and
,utilizing said integral risk potential as a basis for changing the speed of said vehicle.
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Abstract
A method controls the speed of a motor vehicle in accordance with risk. Each risk element of a road segment is evaluated for the specific risk potential thereof by taking into consideration the perils and the actual speed of the driver of the motor vehicle. An integral risk potential is calculated for the road segment on the basis of the sum of the specific risk potentials of all detected risk elements. A system is provided to carry out the method of the invention.
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Citations
14 Claims
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1. A method for controlling the speed of a vehicle in accordance with risk, the method comprising the steps of:
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computing a pregiven trip route for said vehicle which includes a plurality of speed-dependent trip segments; detecting the instantaneous speed of said vehicle; detecting risk elements during the trip for each one of said trip segments; computing the current one of said speed-dependent trip segments from said trip route; evaluating each one of said determined risk elements of said one speed-dependent trip segment as to the specific risk potential of said one risk element while considering the dangers thereof and said instantaneous speed of said vehicle; computing an integral risk potential for said one speed-dependent trip segment from a sum of the specific risk potentials of all of the detected risk elements for said one speed-dependent trip segment; and
,utilizing said integral risk potential as a basis for changing the speed of said vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for carrying out a method for controlling the speed of a vehicle in accordance with risk with the method including the steps of:
- computing a pregiven trip route for said vehicle which includes a plurality of speed-dependent trip segments;
detecting the instantaneous speed of said vehicle;
detecting risk elements during the trip for each one of said trip segments;
computing the current one of said speed-dependent trip segments from said trip route;
evaluating each one of said determined risk elements of said one speed-dependent trip segment as to the specific risk potential of said one risk element while considering the dangers thereof and said instantaneous speed of said vehicle;
computing an, integral risk potential for said one speed-dependent trip segment from a sum of the specific risk potentials of all of the detected risk elements for said one speed-dependent trip segment;
utilizing said integral risk potential as a basis for changing the speed of said vehicle; and
, said risk elements being grouped into a first group defining permanent risk elements and into a second group defining temporary risk elements;
the system comprising;an input matrix wherein said permanent risk elements are stored and/or a sensor package for detecting said temporary risk elements from the environment and from typical traffic situations; a risk decoder for processing quantities of information; a display for indicating the detected risk elements; said risk decoder defining a computation module and including a risk matrix and a storage module; said risk matrix functioning to compute one of said speed-dependent trip segments and to compute an integral risk potential for said one trip segment in said risk decoder and wherein the computation of said integral risk potential takes place in comparison with a stored accident statistic standard matrix in that the special risk potential of each risk element is first investigated and the integral risk potential is determined therefrom. - View Dependent Claims (12, 13, 14)
- computing a pregiven trip route for said vehicle which includes a plurality of speed-dependent trip segments;
Specification