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US 7,070,247 B2Granted
Method and apparatus for controlling brake-steer in an automotive vehicle in a forward and reverse direction
AssigneeFord Global Technologies, LLC
InventorTimothy G. Offerle
Life of this patent
Estimating the term…
Abstract
A system and method of controlling an automotive vehicle includes determining a forward direction and reverse direction of the vehicle and applying brake-steer in a forward position as a function of a first threshold and applying brake-steer in the reverse position as a function of a second threshold different than the first threshold.
Claims35
A method of controlling an automotive vehicle comprising:
- determining a forward direction of the vehicle and generating a forward direction signal;
- determining a reverse direction of the vehicle and generating a reverse direction signal;
- applying brake-steer to reduce a turning radius of the vehicle beyond that corresponding to a steering input by the application of brakes in response to the forward direction signal as a function of a first threshold;
- and
- applying brake-steer to reduce the turning radius of the vehicle beyond that corresponding to the steering input by the application of brakes in response to the reverse direction signal as a function of a second threshold is greater than the first threshold.
2 more elements
A method of controlling an automotive vehicle comprising:
- determining a forward direction of the vehicle and generating a forward direction signal;
- determining a reverse direction of the vehicle and generating a reverse direction signal;
- applying brake-steer to reduce a turning radius of the vehicle beyond that corresponding to a steering input by applying brakes and by applying an increased drive torque to a second wheel relative to a first wheel in response to the forward direction signal as a function of a first threshold;
- and
- applying brake-steer to reduce the turning radius of the vehicle beyond that corresponding to the steering input by the application of brakes in response to the reverse direction signals as a function of a second threshold different than the first threshold.
2 more elements
A method of controlling an automotive vehicle comprising:
- determining a forward direction of the vehicle and generating a forward direction signal;
- determining a reverse direction of the vehicle and generating a reverse direction signal;
- applying brake-steer to reduce a turning radius of the vehicle beyond that corresponding to a steering input by applying brakes and increasing normal load on at least one wheel by modifying a suspension component, wherein brake-steer is applied in response to the forward direction signal as a function of a first threshold;
- and
- applying brake-steer to reduce the turning radius of the vehicle beyond that corresponding to the steering input by the application of brakes in response to the reverse direction signal as a function of a second threshold different than the first threshold.
2 more elements
A method of controlling an automotive vehicle comprising:
- determining a forward direction of the vehicle and generating a forward direction signal;
- determining a reverse direction of the vehicle and generating a reverse direction signal;
- applying brake-steer to reduce a turning radius of the vehicle beyond that corresponding to a steering input by applying brakes in response to the forward direction signal as a function of a first threshold;
- and
- applying a brake steer to reduce the turning radius of the vehicle beyond that corresponding to the steering input by applying brakes and by applying an increased drive torque to a second wheel relative to a first wheel in response to the reverse direction signal as a function of a second threshold different than the first threshold.
2 more elements
A method of controlling an automotive vehicle comprising:
- determining a forward direction of the vehicle and generating a forward direction signal;
- determining a reverse direction of the vehicle and generating a reverse direction signal;
- applying brake-steer to reduce a turning radius of the vehicle beyond that corresponding to a steering input by applying brakes in response to the forward direction signal as a function of a first threshold;
- and
- applying brake-steer to reduce a turning radius of the vehicle beyond that corresponding to a steering input by applying brakes and increasing normal load on at least one wheel by modifying a suspension component, wherein brake-steer is applied in response to the reverse direction signal as a function of a second threshold different than the first threshold.
2 more elements
A method
- A method of controlling an automotive vehicle comprising;
- determining a forward direction of the vehicle and generating a forward direction signal;
- determining a reverse direction of the vehicle and generating a reverse direction signal;
- determining a steering wheel torque;
- applying brake-steer to reduce a turning radius of the vehicle beyond that corresponding to the steering input by the application of brakes in response to the forward direction signal as a function of a first threshold;
- and
- applying brake-steer to reduce the turning radius of the vehicle beyond that corresponding to the steering input by the application of brakes in response to the reverse direction signal as a function of a second threshold different than the first threshold, wherein applying brake-steer in response to the forward direction or reverse direction comprises applying brake-steer in response to steering wheel torque.
4 more elements
A vehicle comprising:
- means to determine a forward direction and generate a forward direction signal;
- means to determine a reverse direction and generate a reverse direction signal;
- and
- a controller coupled to the means to determine a forward direction and the means to determine a reverse direction, said controller programmed to apply brake-steer to reduce a turning radius of the vehicle beyond that corresponding to a steering input by applying brakes and by applying an increased drive torque to a second wheel relative to the first wheel in response to the forward direction signal as a function of the first threshold and apply brake-steer to reduce the turning radius of the vehicle beyond that corresponding to a steering input by the application of brakes in response to the reverse direction signal as a function of the second threshold different than the first threshold.
1 more element
A vehicle comprising:
- means to determine a forward direction and generate a forward direction signal;
- means to determine a reverse direction and generate a reverse direction signal;
- a steering wheel torque sensor generating a steering torque signal;
- and
- a controller coupled to the means to determine a forward direction and the means to determine a reverse direction, said controller programmed to apply brake-steer to reduce a turning radius of the vehicle beyond that corresponding to a steering input by the application of brakes in response to the forward direction signal as a function of the first threshold and apply brake steer to reduce the turning radius of the vehicle beyond that corresponding to a steering input by the application of brakes in response to the reverse direction signal and steering torque signal as a function of the second threshold different than the first threshold.
2 more elements
Dependencies are inferred from the claim text.