US 7,096,107 B2Granted

Device for the longitudinal guidance of a motor vehicle

AssigneeRobert Bosch GmbH

InventorsHarald Michi, Michael Scherl, Michael Weilkes, Werner Uhler

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Abstract

A device for the longitudinal guidance of a motor vehicle, having a sensor device for the location of objects in the nearfield of the vehicle, a controller which generates a reference variable for a motion variable of the vehicle for the regulation of the vehicle's speed, as a function of the location data of the sensor device, and an actuator which has an effect on the motion variable as a function of the reference variable, wherein a mathematical model of the actuator is stored in a memory, which describes the dynamic behavior of the actuator, that is, it produces a relationship between an input variable supplied to the actuator and an output variable of the actuator; and a compensating element is provided to convert the reference variable, by way of the model, into the input variable in such a way that the dynamic behavior of the actuator is compensated for.

Claims7

Dependent claims

A device for the longitudinal guidance of a motor vehicle comprising:

a sensor device for sensing a location of at least one object in a nearfield of the vehicle;
a controller for generating a reference variable used in connection with a motion variable of the vehicle for a regulation of a speed of the vehicle, wherein the regulation is achieved as a function of location data of the sensor device;
at least one actuator having an effect on the motion variable as a function of the reference variable;
a memory for storing a mathematical model of the actuator, the mathematical model describing a dynamic behavior of the actuator, the mathematical model providing a relationship between an input variable supplied to the actuator and an output variable of the actuator;
a compensating element for converting the reference variable, via the mathematical model, into the input variable in such a way that the dynamic behavior of the actuator is compensated for;
and
wherein the reference variable generated by the controller is given by a time-dependent function, and the controller outputs a functional rule of the function to the compensating element.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 10/868,132Filed 14 Jun 2004
Priority: DE 103 26 56212 Jun 2003
Published: US 2005/0015184 A120 Jan 2005
Granted: 22 Aug 2006
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

B60W 30/16
Adaptive cruise control: control of distance between vehicles, e.g. keeping a distance to preceding vehicle
B60K 31/0008
Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an…:…
B60W 2050/0012
Automatic control, details of type of controller or control system architecture: feedforward or open loop systems
B60W 2050/0031
Mathematical models, e.g. for simulation: mathematical model of the vehicle