Method and apparatus for steering a vehicle with fixed-position wheels
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B62D-011/02
출원번호
US-0390205
(1982-06-21)
우선권정보
DE-3135485 (1981-09-08)
발명자
/ 주소
Hnes Helmut (Korntal DEX) Mohaupt Hubert (Bietigheim DEX)
출원인 / 주소
Robert Bosch GmbH (Stuttgart DEX 03)
인용정보
피인용 횟수 :
13인용 특허 :
3
초록▼
To control the turning direction of a vehicle having wheels with fixed axles or tracks at the respective sides of the vehicle, a steering wheel (1) is coupled to a wheel position transducer (11); a direction control lever (2) is coupled to a position transducer (12), providing forward and reverse (F
To control the turning direction of a vehicle having wheels with fixed axles or tracks at the respective sides of the vehicle, a steering wheel (1) is coupled to a wheel position transducer (11); a direction control lever (2) is coupled to a position transducer (12), providing forward and reverse (F-REV) driving direction signals. The signals are so arranged that, for turning in respectively opposite directions, signals of positive or negative polarity, with a level varying with the turning radius, are provided; for forward or reverse, respectively, signals of varying polarity are provided. The turning direction signal and the driving direction signal are processed including addition and subtraction, to control independent drive motors (4, 6; 5, 7) at the respective right and left (R-L) sides of the vehicle such that the motor at the inside of the curve will receive a signal which has a lesser algebraic value than the driving direction signal, and the motor at the outside of the curve will receive only the driving direction signal, to cause the wheel at the inside of the curve to rotate slower, or with reverse direction of rotation than that at the outside of the turning circle.
대표청구항▼
Method of steering a vehicle in a predetermined path which includes a curve, having right (R) and left (R) rotating drive elements or wheels (8, 9) at the sides of the vehicle, respectively, by controlling the speed and direction of rotation of the wheels, having a steering wheel (1) and a steering
Method of steering a vehicle in a predetermined path which includes a curve, having right (R) and left (R) rotating drive elements or wheels (8, 9) at the sides of the vehicle, respectively, by controlling the speed and direction of rotation of the wheels, having a steering wheel (1) and a steering wheel position transducer (11) coupled thereto and providing a right-left (R-L) turning signal; a direction control element (2) and a control element position transducer (12) coupled thereto and providing a forward-reverse (F-REV) direction drive signal; and separate drive motors (6, 7) controlling the respective rotation of the L and R wheels (8, 9), comprising the steps of multiplying the turning signal and the direction signal and obtaining a combined signal; adding said combined signal to the direction signal and obtaining a first turning control direction signal; subtracting said combined signal from the direction signal and obtaining a second turning control direction signal; controlling the wheel at the inside of the curve by, selectively, the first or the second turning control direction signal, respectively, in dependence on the relative level thereof; and controlling the wheel at the outside of the curve of the turning direction in dependence on the driving direction signal.
연구과제 타임라인
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이 특허에 인용된 특허 (3)
Downing ; Jr. James H. (Rte. 2 ; Box. 276 Louisa VA 23093), All-electric A.C. tractor.
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