Brake assist exit method and system for vehicles
First Claim
1. A method for providing a smooth exit from a panic braking assist algorithm in a vehicle having a braking system with a brake pedal, the method comprising the steps of:
- measuring a force applied to the brake pedal;
measuring a movement of the brake pedal;
applying a first level of braking during a panic braking event when the force applied to the brake pedal is greater than a predetermined force calibration value;
determining a pedal travel starting point corresponding to the predetermined force calibration value;
determining a pedal travel ending point corresponding to a termination of the panic braking event; and
applying a variable level of braking during an exit of the panic braking event based on a relative proximity of the movement of the brake pedal to the pedal travel starting point versus the pedal travel ending point, based on an interpolation between the pedal travel starting point and the pedal travel ending point, when the force applied to the brake pedal is less than the predetermined force calibration value and the movement of the brake pedal is greater than the pedal travel ending point.
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Accused Products
Abstract
A method for providing a smooth exit from a panic braking assist algorithm, in a vehicle having a braking system with a brake pedal, comprises the steps of measuring a force applied to the brake pedal, measuring a movement of the brake pedal, applying a first level of braking when the force applied to the brake pedal is equal to a predetermined force calibration value, applying a second level of braking when the movement of the brake pedal is equal to a predetermined travel calibration value, and applying a variable level of braking when the force applied to the brake pedal is less than the predetermined force calibration value and the movement of the brake pedal is greater than the predetermined travel calibration value. The variable level of braking is a function of the movement of the brake pedal.
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Citations
20 Claims
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1. A method for providing a smooth exit from a panic braking assist algorithm in a vehicle having a braking system with a brake pedal, the method comprising the steps of:
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measuring a force applied to the brake pedal; measuring a movement of the brake pedal; applying a first level of braking during a panic braking event when the force applied to the brake pedal is greater than a predetermined force calibration value; determining a pedal travel starting point corresponding to the predetermined force calibration value; determining a pedal travel ending point corresponding to a termination of the panic braking event; and applying a variable level of braking during an exit of the panic braking event based on a relative proximity of the movement of the brake pedal to the pedal travel starting point versus the pedal travel ending point, based on an interpolation between the pedal travel starting point and the pedal travel ending point, when the force applied to the brake pedal is less than the predetermined force calibration value and the movement of the brake pedal is greater than the pedal travel ending point. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A control system for providing a smooth exit from a panic braking assist algorithm in a vehicle having a braking system with a brake pedal, the control system comprising:
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a first sensor configured to measure a force applied to the brake pedal; a second sensor configured to measure a movement of the brake pedal; and a processor configured to at least facilitate; application of a first level of braking during a panic braking event when the force applied to the brake pedal is greater than a predetermined force calibration value; determining a pedal travel starting point corresponding to the predetermined force calibration value; determining a pedal travel ending point corresponding to a termination of the panic braking event; and application of a variable level of braking during an exit of the panic braking event based on a relative proximity of the movement of the brake pedal to the pedal travel starting point versus the pedal travel ending point, based on an interpolation between the pedal travel starting point and the pedal travel ending point, when the force applied to the brake pedal is less than the predetermined force calibration value and the movement of the brake pedal is greater than the pedal travel ending point. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A braking system for a vehicle, comprising:
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a brake pedal; a brake pedal force sensor configured to measure a force applied to the brake pedal; a brake pedal travel sensor configured to measure a movement of the brake pedal; a plurality of brake units configured to slow or stop the vehicle; and a brake controller configured to at least facilitate; application of the plurality of brake units with a first level of braking during a panic braking event when the force applied to the brake pedal is greater than a predetermined force calibration value; determining a pedal travel starting point corresponding to the predetermined force calibration value; determining a pedal travel ending point corresponding to a termination of the panic braking event; and application of the plurality of brake units with a variable level of braking during an exit of the panic braking event based on a relative proximity of the movement of the brake pedal to the pedal travel starting point versus the pedal travel ending point, based on an interpolation between the pedal travel starting point and the pedal travel ending point, when the force applied to the brake pedal is less than the predetermined force calibration value and the movement of the brake pedal is greater than the pedal travel ending point. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification