Device and method for improved monitoring of a lateral -acceleration sensor
First Claim
1. A device for monitoring a lateral-acceleration sensor, the lateral acceleration sensor detecting a first lateral acceleration variable that describes a lateral acceleration activity on a vehicle, the device comprising:
- a detecting arrangement for detecting at least one wheel-speed variable that describes at least one speed of at least one wheel;
a first determination arrangement for determining a variable describing a vehicle speed as a first function of at least one of the at least one wheel-speed variable;
a second determination arrangement for determining a second lateral-acceleration variable as a second function of another of the at least one wheel-speed variable;
a monitoring arrangement for performing at least one first comparison of the first lateral-acceleration variable to the second lateral-acceleration variable in order to monitor the lateral-acceleration sensor; and
an enabling arrangement for deciding about one of an implementation and an interruption of a monitoring performed by the monitoring arrangement, wherein;
at least one second comparison of the at least one wheel-speed variable to the variable describing the vehicle speed is performed by the enabling arrangement, and the monitoring of the lateral-acceleration sensor is performed depending on a result of the at least one second comparison.
1 Assignment
0 Petitions
Accused Products
Abstract
A device and a method for monitoring a lateral-acceleration sensor suitable for use in a motor vehicle. A first lateral-acceleration variable is detected which describes the lateral acceleration acting on the vehicle. The device also includes a detecting arrangement with which wheel-speed variables are detected that describe the speeds of the individual wheels. Also included is a first determination arrangement with which a variable describing the vehicle speed is determined as a function of at least one wheel-speed variable, and a second determination arrangement with which a second lateral-acceleration variable is determined as a function of at least one wheel-speed variable, as well as a monitoring arrangement in which at least one comparison of the first lateral-acceleration variable to the second lateral-acceleration variable is carried out for monitoring the lateral-acceleration sensor. In addition, an enabling arrangement is provided in which a decision is made about implementation or interruption of the monitoring in the monitoring arrangement. At least one comparison of a wheel-speed variable to the variable describing the vehicle speed is carried out in the enabling arrangement, and the monitoring of the lateral-acceleration sensor takes place depending on the result of this at least one comparison.
-
Citations
16 Claims
-
1. A device for monitoring a lateral-acceleration sensor, the lateral acceleration sensor detecting a first lateral acceleration variable that describes a lateral acceleration activity on a vehicle, the device comprising:
-
a detecting arrangement for detecting at least one wheel-speed variable that describes at least one speed of at least one wheel;
a first determination arrangement for determining a variable describing a vehicle speed as a first function of at least one of the at least one wheel-speed variable;
a second determination arrangement for determining a second lateral-acceleration variable as a second function of another of the at least one wheel-speed variable;
a monitoring arrangement for performing at least one first comparison of the first lateral-acceleration variable to the second lateral-acceleration variable in order to monitor the lateral-acceleration sensor; and
an enabling arrangement for deciding about one of an implementation and an interruption of a monitoring performed by the monitoring arrangement, wherein;
at least one second comparison of the at least one wheel-speed variable to the variable describing the vehicle speed is performed by the enabling arrangement, and the monitoring of the lateral-acceleration sensor is performed depending on a result of the at least one second comparison. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. A method for monitoring a lateral-acceleration sensor, the lateral acceleration variable detecting a first lateral acceleration variable that describes a lateral acceleration activity on a vehicle, comprising:
-
detecting at least one wheel-speed variable which describes at least one speed of at least one wheel in a detecting arrangement;
determining a variable describing a vehicle speed in a first determination arrangement as a first function of the at least one wheel-speed variable;
determining a second lateral-acceleration variable in a second determination arrangement as a second function of the at least one wheel-speed variable;
performing at least one first comparison of the first lateral-acceleration variable to the second lateral-acceleration variable in a monitoring arrangement for monitoring the lateral-acceleration sensor; and
performing at least one second comparison of the at least one wheel-speed variable to the variable describing the vehicle speed during cornering;
wherein the monitoring of the lateral-acceleration sensor is performed depending on a result of the at least one second comparison. - View Dependent Claims (16)
-
Specification