Drive-by wire steering systems having a stop mechanism
First Claim
1. A drive-by wire steering system, comprising:
- a steering shaft being configured for a first angular displacement about a first axis, said steering shaft comprising a first geared portion and a first end, said first end being connectable to a vehicle'"'"'s steering wheel; and
a stop mechanism comprising a stop portion and a second geared portion, said stop portion defining a first position and a second position, said first geared portion and said second geared portion being operatively engaged such that said first angular displacement of said steering shaft imparts a second angular displacement about a second axis to said stop mechanism, said first angular displacement being limited when said second angular displacement is such that said steering shaft abuts said stop portion at either said first position or said second position.
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Accused Products
Abstract
A drive-by wire steering system is provided. The steering system comprises a steering shaft and a stop mechanism. The steering shaft is configured for a first angular displacement about a first axis. The steering shaft comprises a first geared portion and a first end. The first end is connectable to a vehicle'"'"'s steering wheel. The stop mechanism comprises a stop portion and a second geared portion. The stop portion defines a first position and a second position. The first geared portion and the second geared portion are operatively engaged such that angular displacement of the steering shaft imparts a second angular displacement about a second axis to the stop mechanism. The first angular displacement is limited when the second angular displacement is such that the steering shaft abuts the stop portion at either the first position or the second position.
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Citations
13 Claims
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1. A drive-by wire steering system, comprising:
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a steering shaft being configured for a first angular displacement about a first axis, said steering shaft comprising a first geared portion and a first end, said first end being connectable to a vehicle'"'"'s steering wheel; and
a stop mechanism comprising a stop portion and a second geared portion, said stop portion defining a first position and a second position, said first geared portion and said second geared portion being operatively engaged such that said first angular displacement of said steering shaft imparts a second angular displacement about a second axis to said stop mechanism, said first angular displacement being limited when said second angular displacement is such that said steering shaft abuts said stop portion at either said first position or said second position. - View Dependent Claims (2, 3, 4, 5, 9)
screws disposed in said stop portion, said screws being configured to adjust said angular displacement of said stop mechanism about said second axis by about ±
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9. The method of claim 5, further comprising calibrating said first position and said second position of said stop portion via adjustment screws by about ±
- 5°
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- 5°
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6. A method of preventing over rotation of a sensor in a drive-by wire steering system where the sensor has a predetermined displacement range, comprising:
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connecting the sensor to a steering shaft, said steering shaft being configured for a first angular displacement about a first axis;
engaging a stop mechanism to said steering shaft such that said first angular displacement imparts a second angular displacement about a second axis to said stop mechanism, said first angular displacement being greater than said second angular displacement; and
abutting said stop mechanism and said steering shaft at a first position and a second position to limit said first angular displacement of said steering shaft such that the sensor is maintained within the predetermined displacement range. - View Dependent Claims (7, 8)
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10. A method of improving the driveability of a drive-by wire steering system, comprising
engaging a stop mechanism and a steering shaft such that a first angular displacement of said steering shaft about a first axis imparts a second angular displacement about a second axis to said stop mechanism, said first angular displacement being greater than said second angular displacement; - and
limiting said first angular displacement by an interference of said stop mechanism with said steering shaft at a first position and a second position such that a range of motion is provided to the drive-by wire steering system that mimics a mechanically linked steering system range of motion. - View Dependent Claims (11, 12, 13)
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Specification