Title:
INTELLIGENT BRAKING SYSTEM AND METHOD
Document Type and Number:
WIPO Patent Application WO2003051697
Kind Code:
A3
Abstract:
A distance, speed and direction sensitive processor coupled to a brake controller. The processor executes instructions to compare actual vehicle performance with that of a deceleration profile and modulates the brake controller to bring vehicle performance into agreement with the profile. Distance information (D) is provided by a radar sensor (215) for long ranges, an ultrasonic sensor (210) for medium ranges, and a wheel rotation sensor for short ranges. Speed information is provided by a vehicle mounted sensor or calculated by the processor based on distance. Direction information is provided by a vehicle mounted switch or determined by the processor based on distance. The brake controller includes a hold valve and a dump valve, each of which is modulated with a pulse train signal.
Inventors:
THIEDE DAVID (US)
BEATTY JON P (US)
GUNDERSON RICHARD A (US)
MCKINLEY JOHN R (US)
BEATTY JON P (US)
GUNDERSON RICHARD A (US)
MCKINLEY JOHN R (US)
Application Number:
PCT/US2002/040324
Publication Date:
October 09, 2003
Filing Date:
December 17, 2002
Export Citation:
Assignee:
ALTRA TECHNOLOGIES INC (US)
THIEDE DAVID (US)
BEATTY JON P (US)
GUNDERSON RICHARD A (US)
MCKINLEY JOHN R (US)
THIEDE DAVID (US)
BEATTY JON P (US)
GUNDERSON RICHARD A (US)
MCKINLEY JOHN R (US)
International Classes:
B60K31/00; B60T7/22; G08G1/16; (IPC1-7): B60T7/22; B60K31/00; G08G1/16
Foreign References:
| DE19831262A1 | 2000-01-13 | |||
| US5864285A | 1999-01-26 | |||
| DE10006682A1 | 2001-10-04 | |||
| DE19807748A1 | 1999-09-02 | |||
| DE10011777A1 | 2000-11-16 | |||
| GB2309555A | 1997-07-30 | |||
| DE4040894C1 | 1992-04-30 | |||
| DE19634715A1 | 1998-03-05 | |||
| DE19543582A1 | 1997-06-05 |
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