Robert Boschgmbh

Willy J Klier

Ravi Bhadange

Dietmar Stapel

Nachiket D Patil

Stefan Mallmann

Henrik Bechtler

Michael Schwab

Joerg Eesmann

Takeshi Tokonaga

Kenta Mineo

David Neil VanderLugt

Scott Amenson

Systems and methods are described for controlling vehicle steering. A target yaw rate and a target side-slip angle are determined for the vehicle and an initial steering angle setting is determined based on a position of a steering wheel operated by a driver of the vehicle. A nonlinear vehicle model is applied to calculate a compensated steering angle setting based on the initial steering angle setting, an actual yaw rate of the vehicle, and an actual side-slip angle of the vehicle. A steering system of the vehicle is then controls the angle of the front wheels of the vehicle based on the compensated steering angle and, by doing so, causes both the actual yaw rate and the actual side-slip angle to approach the target yaw rate and the target side-slip angle, respectively.

Non-linear compensation controller for active steering system in a vehicle

An adaptive control adjusts thresholds in a vehicle stability control in response to video camera data, GPS data and weather data indicating that vehicle road conditions are not ideal. Video data determines mue (coefficient of friction) and type of road. Weather data includes temperature, visibility, precipitation and wind velocity. A human machine interface manually overrides the adaptive control in response to a user input.

Adaptive electronic stability control

A controller for determining whether a previously-determined vehicle steering sensor malfunction still exists. The controller includes an electronic, non-volatile memory, and an electronic processing unit connected to the electronic, non-volatile memory. The electronic processing module includes a malfunction monitoring module, a failure handling module, and a signal checking module. The malfunction monitoring module monitors the operation of at least one vehicle sensor and generates a fault signal when the at least one sensor malfunctions. The failure handling module causes drive cycle information and the fault information to be stored in the electronic, non-volatile memory. The signal checking module performs a signal check on information from the at least one sensor.

Good checking for vehicle steering angle sensor

Systems and methods of monitoring redundant vacuum sensors in the same vacuum chamber of a braking system to determine when an error condition is present in a braking system. The braking system includes a first sensor positioned in a chamber of the braking system and a second sensor positioned in the same chamber. A first reading is received from the first sensor and a second reading is received from the second sensor. A difference between the first reading and the second reading is determined. An error condition is indicated when the difference between the first reading and the second reading is greater than a threshold.

Fast detection of error conditions in vehicle vacuum sensors for a hydraulic boost compensation system

A mechanism for determining whether a malfunctioning pressure sensor has returned to a normal or acceptable operating range. The mechanism includes controllers and methods that perform a 'good check' on the sensor to determine whether the sensor has returned to normal or acceptable operation after a malfunction has been detected. When a previously-malfunctioning sensor passes the 'good check,' warning lights (or tell-tale) indicators are shut off and systems that relied upon information from the malfunctioning sensor return to normal operation.

Good checking for vehicle pressure sensor

A controller for indicating whether a previously-detected, acceleration-sensor malfunction no longer exists. The controller includes an electronic memory and an electronic processing unit connected to the electronic memory. The electronic processing module includes a malfunction monitoring module, a failure handling module, and a signal checking module. The signal checking module performs a signal check after the malfunction monitoring module generates the fault signal. The signal check includes executing a signal check function with a longitudinal acceleration signal. Also disclosed is a vehicle including the controller, and a method executed by the controller.

Good checking for vehicle longitudinal acceleration sensor

Systems and methods for computing the center of gravity of a vehicle. One method includes determining a first, second, and third acceleration of the vehicle along an x-axis, a y-axis, and a z-axis; determining a first, second, and third angular rate of the vehicle along the x-axis, the y-axis, and the z-axis; determining a total force acting on the vehicle; and determining an estimated mass of the vehicle. The method also includes computing a center of gravity of the vehicle based on the first acceleration, the second acceleration, the third acceleration, the first angular rate, the second angular rate, the third angular rate, the total force acting on the vehicle, and the estimated mass.

Continuous computation of center of gravity of a vehicle

A system and method of continuously updating a steering wheel angle offset value to adapt to changing road conditions. A vehicle control system receives a plurality of vehicle parameter values each from a different vehicle sensor. The system then calculates a plurality of observed steering angle values, each using a different calculation method based on one or more of the plurality of vehicle parameter values. The plurality of observed steering angle values are then used to calculate a vehicle steering angle. A steering wheel angle offset value is then calculated based on the steering wheel angle and the calculated vehicle steering angle. The steering wheel angle offset value and the steering wheel angle are used to control the vehicle's steering system.

Continuous correction for steering wheel angle offset

A controller for determining whether a previously-detected vehicle malfunction still exists. If the malfunction is no longer detected in the sensor signals, a vehicle control system operates in a first operational state or normal operational state with respect to the previously-malfunctioning sensor (e.g., signals from the sensor are used to control the vehicle). If the malfunction continues to be detected, the vehicle control system operates in a second operational state or malfunction state with respect to the malfunctioning sensor in which the signals from the sensor are not used to control the vehicle.

Good checking for vehicle yaw rate sensor

A controller for determining whether a previously-detected vehicle wheel speed sensor malfunction still exists. The controller includes an electronic, non-volatile memory, and an electronic processing unit connected to the electronic, non-volatile memory. The electronic processing module includes a malfunction monitoring module, a failure handling module, and a signal checking module. The malfunction monitoring module monitors the operation of at least one wheel speed sensor and generates a fault signal when the at least one sensor malfunctions. The failure handling module causes drive cycle information and the fault information to be stored in the electronic, non-volatile memory. The signal checking module performs a signal check on information from the at least one wheel speed sensor. A tell-tale indicator is deactivated and/or a vehicle control system resumes normal operation if the wheel speed sensor passes the signal check.

Good checking for vehicle wheel speed sensors

A controller for indicating whether a previously-detected, acceleration-sensor malfunction no longer exists. The controller includes an electronic memory and an electronic processing unit connected to the electronic memory. The electronic processing module includes a malfunction monitoring module, a failure handling module, and a signal checking module. The signal checking module performs a signal check after the malfunction monitoring module generates the fault signal. The signal check includes executing a signal check function with a lateral acceleration signal. Also disclosed is a vehicle including the controller, and a method executed by the controller.

Good checking for vehicle lateral acceleration sensor

A mechanism for determining whether a malfunctioning sensor has returned to a normal or acceptable operating range. The mechanism includes controllers and methods that perform a 'good check' on the sensor to determine whether the sensor has returned to normal or acceptable operation after a malfunction has been detected. When a previously-malfunctioning sensor passes the 'good check,' warning lights (or tell-tale) indicators are shut off and systems that relied upon information from the malfunctioning sensor return to normal operation.

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Bloomfield Hills, MI, United States of America

Willy J Klier