4 wheel steering
CERTIFICATE
The Technical Seminar Report entitled “OMNI-DIRECTIONAL STEERING” was submitted by AVINASH KINI bearing USN 1MS10ME046, a student of Mechanical Engineering Department, M.S. Ramaiah Institute of Technology, Bangalore, with respect to Seminar subject (Sub code ME801) of eight semester, during the year 2013-2014.
To the best of my knowledge the work reported has not been submitted elsewhere for the award of the degree and is not the repetition of the work carried out by others.
AVINASH KINI
MARKS:
Name and Signature of Examiners:
OMNI DIRECTIONAL STEERING
This topic involves the development of the existing steering mechanism in cars. The objective of the omni directional steering mechanism is to achieve the four steering modes.
1. Two wheel steering (Only front wheels are steered )
2. Four wheel steering (Front and rear wheels are steered)
a) Normal mode (direction of rear wheels is opposite to that at the front)
b) Crab steering mode (Front and rear wheels are in the same direction)
c) Zero turn radius mode (Front wheels turn inwards and rear wheels turn outwards; enables the vehicle to take a 360® turn in its place)
INTRODUCTION TO STEERING SYSTEM
The steering of a four wheel vehicle is, as far as possible, arranged so that the front wheels will roll truly without any lateral slip. The front wheels are
Vehicle equipped with this steering mechanism has excellent off-road capabilities and is also highly manoeuvrable in congested city conditions supported on front axle so that they can swing to the left or right for steering.This movement is produced by gearing and linkage between the steering wheel in front of the driver and the steering knuckle or wheel. The completearrangement is called the steering system. The steering system essentiallyconsists of two elements- a steering gear at the lower end
The Technical Seminar Report entitled “OMNI-DIRECTIONAL STEERING” was submitted by AVINASH KINI bearing USN 1MS10ME046, a student of Mechanical Engineering Department, M.S. Ramaiah Institute of Technology, Bangalore, with respect to Seminar subject (Sub code ME801) of eight semester, during the year 2013-2014.
To the best of my knowledge the work reported has not been submitted elsewhere for the award of the degree and is not the repetition of the work carried out by others.
AVINASH KINI
MARKS:
Name and Signature of Examiners:
OMNI DIRECTIONAL STEERING
This topic involves the development of the existing steering mechanism in cars. The objective of the omni directional steering mechanism is to achieve the four steering modes.
1. Two wheel steering (Only front wheels are steered )
2. Four wheel steering (Front and rear wheels are steered)
a) Normal mode (direction of rear wheels is opposite to that at the front)
b) Crab steering mode (Front and rear wheels are in the same direction)
c) Zero turn radius mode (Front wheels turn inwards and rear wheels turn outwards; enables the vehicle to take a 360® turn in its place)
INTRODUCTION TO STEERING SYSTEM
The steering of a four wheel vehicle is, as far as possible, arranged so that the front wheels will roll truly without any lateral slip. The front wheels are
Vehicle equipped with this steering mechanism has excellent off-road capabilities and is also highly manoeuvrable in congested city conditions supported on front axle so that they can swing to the left or right for steering.This movement is produced by gearing and linkage between the steering wheel in front of the driver and the steering knuckle or wheel. The completearrangement is called the steering system. The steering system essentiallyconsists of two elements- a steering gear at the lower end
References: 1.Dr. N. K. Giri, “Automotive Mechanics”, Khanna Publishers, 2-B, NathMarket, Nai Sarak, New Delhi – 111006. (1996) , 7th Edition. 2.Thomas. D. Gillespie, “Fundamentals of Vehicle Dynamics”, Society of Automotive Engineers, Warrendale. (2000) Online Edition. 3.Akihiko Miyoshi. (1988) ‘four-wheel steering system, MazdaCorporation, JAPAN. U.S patent No. 4,719,981. 4.Hiroshi Ohmura (1990) ‘Rear wheel steering apparatus’, Mazda Motor Corporation, U.S patent No. 4,953,648. 5.Yuichi Ushiroda, okazaki, kaoru sawase. (2008) ‘Power TransmissionSystem For four-wheel steering system, Mitsubishi jidosha kogyokabushiki kaisha Tokyo, Japan, U.S patent No. 7,325,640.