Steering wheels are used in most modern land vehicles, including all mass-production automobiles, as well as buses, light and heavy trucks, and tractors. The steering wheel is the part of the steering system that is manipulated by the driver; the rest of the steering system responds to such driver inputs. This can be through direct mechanical contact as in recirculating ball or rack and pinion steering gears, without or with the assistance of hydraulic power steering, HPS, or as in some modern production cars with the assistance of computer-controlled motors, known as Electric Power Steering.
Near the start of the 18th century, a large number of sea vessels appeared using the ship's wheel design, but historians are unclear when that approach to steering was first used. The first automobiles were steered with a tiller, but in 1894, Alfred Vacheron took part in the Paris–Rouen race with a Panhard 4 hp model which he had fitted with a steering wheel. That is believed to be one of the earliest employments of the principle.
From 1898, the Panhard et Levassor cars were equipped as standard with steering wheels. Charles Rolls introduced the first car in Britain fitted with a steering wheel when he imported a 6 hp Panhard from France in 1898. Arthur Constantin Krebs replaced the tiller with an inclined steering wheel for the Panhard car he designed for the 1898 Paris–Amsterdam–Paris race which ran 7–13 July 1898.
In 1898, Thomas B. Jeffery and his son, Charles T. Jeffery, developed two advanced experimental cars featuring a front-mounted engine, as well as a steering wheel that was mounted on the left-hand side. However, the early automaker adopted a more "conventional" rear-engine and tiller-steering layout for its first mass-produced Ramblers in 1902. The following year, the Rambler Model E was largely unchanged, except that it came equipped with a tiller early in the year, but with a steering wheel by the end of 1903. By 1904, all Ramblers featured steering wheels. Within a decade, the steering wheel had entirely replaced the tiller in automobiles.
At the insistence of Thomas B. Jeffery, the position of the driver was also moved to the left-hand side of the car during the 1903 Rambler production. Most other car makers began offering cars with left-hand drive in 1910. Soon after, most cars in the U.S. converted to left hand drive.
Steering wheels for passenger automobiles are generally circular, and are mounted to the steering column by a hub connected to the outer ring of the steering wheel by one or more spokes (single spoke wheels being a rather rare exception). Other types of vehicles may use the circular design, a butterfly shape, or some other shape. In countries where cars must drive on the left side of the road, the steering wheel is typically on the right side of the car (right-hand drive or RHD); the converse applies in countries where cars drive on the right side of the road (left-hand drive or LHD).
In addition to its use in steering, the steering wheel is the usual location for a button to activate the car's horn. Modern automobiles may have other controls, such as cruise control, audio system and telephone controls, as well as paddle shifters, built into the steering wheel to minimize the extent to which the driver must take their hands off the wheel.
The steering wheels were rigid and mounted on non-collapsible steering columns. This arrangement increased the risk of impaling the driver in case of a severe crash. The first collapsible steering column was invented in 1934 but was never successfully marketed. By 1956, Ford came out with a safety steering wheel that was set high above the post with spokes that would flex, but the column was still rigid. In 1968, United States regulations (FMVSS Standard No. 204) were implemented concerning the acceptable rearward movement of the steering wheel in case of crash. Collapsible steering columns were required to meet that standard.
Power steering gives the driver an easier means by which the steering of a car can be accomplished. Modern power steering has almost universally relied on a hydraulic system, although electrical systems are steadily replacing this technology. Mechanical power steering systems (e.g., Studebaker, 1952) have been invented, but their weight and complexity negate the benefits that they provide.
While other methods of steering passenger cars have resulted from experiments, for example the "wrist-twist" steering of the 1965 Mercury Park Lane concept car was controlled by two 5-inch (127 mm) rings, none have yet been deployed as successfully as the conventional large steering wheel.
Passenger automobile regulations implemented by the U.S. Department of Transportation required the locking of steering wheel rotation (or transmission locked in "park") to hinder motor vehicle theft; in most vehicles, this is accomplished when the ignition key is removed from the ignition lock. See steering lock.
The driver's seat, and therefore the steering wheel, is centrally located on certain high-performance sports cars, such as the McLaren F1, and in the majority of single-seat racing cars.
As a driver may have his hands on the steering wheel for hours at a time these are designed with ergonomics in mind. However, the most important concern is that the driver can effectively convey torque to the steering system; this is especially important in vehicles without power steering or in the rare event of a loss of steering assist. A typical design for circular steering wheels is a steel or magnesium rim with a plastic or rubberized grip molded over and around it. Some drivers purchase vinyl or textile steering wheel covers to enhance grip or comfort, or simply as decoration. Another device used to make steering easier is the brodie knob.
A similar device in aircraft is the yoke. Water vessels not steered from a stern-mounted tiller are directed with the ship's wheel, which may have inspired the concept of the steering wheel. The steering wheel is better than other user interfaces and has persisted because driving requires precise feedback that only comes from a large interface.
Early Formula One cars used steering wheels taken directly from road cars. They were normally made from wood (necessitating the use of driving gloves), and in the absence of packaging constraints, they tended to be made as large a diameter as possible, to reduce the effort needed to turn. As cars grew progressively lower and cockpits narrower throughout the 1960s and 1970s, steering wheels became smaller, so as to fit into the more compact space available.
Spokes in steering wheel
The number of spokes in the steering wheel has continuously changed. Most early cars had four-spoke steering wheels.
A Banjo Steering Wheel was an option on many early automobiles. Banjo Wheels predate power steering. The wire spokes were a buffer or absorber between the driver's hands and the drum of the road. Most were 3- or 4-spokes made of four or five wires in each spoke, hence the name "Banjo".
Adjustable steering wheels
- Tilt wheel
- The original tilt wheel was developed by Edward James Lobdell in the early 1900s. A 7-position tilt wheel was introduced by the Saginaw Division of General Motors in 1963 for all passenger car divisions except Chevrolet which received the tilt wheel in 1964. This tilt wheel was also supplied to the other US automakers (except Ford). Originally a luxury option on cars, the tilt function helps to adjust the steering wheel by moving the wheel through an arc in an up and down motion. Tilt Steering Wheels rely upon a ratchet joint located in the steering column just below the steering wheel. By disengaging the ratchet lock, the wheel can be adjusted upward or downward while the steering column remains stationary below the joint. Some designs place the pivot slightly forward along the column, allowing for a fair amount of vertical movement of the steering wheel with little actual tilt, while other designs place the pivot almost inside the steering wheel, allowing adjustment of the angle of the steering wheel with almost no change in its height.
- Adjustable steering column
- In contrast, an adjustable steering column allows steering wheel height to be adjusted with only a small, useful change in tilt. Most of these systems work with compression locks or electric motors instead of ratchet mechanisms; the latter may be capable of moving to a memorized position when a given driver uses the car, or of moving up and forward for entry or exit.
- Telescope wheel
- Many pre-war British cars offered telescoping steering wheels that required loosening a locknut prior to adjustment, many using the Douglas ASW (Adjustable Steering Wheel). In 1949, the Jaguar XK120 introduced a new steering wheel supplied by Bluemel that was driver-adjustable by simply loosening a sleeve around the column by hand. The 1955-1957 Ford Thunderbird had a similar design with 3 inches (76 mm) of total travel. In 1956, the travel was restricted to 2 inches (51 mm). A patent was filed regarding a telescoping steering wheel in July of 1942 by Bernard Maurer of the Saginaw Steering Gear Division of General Motors (now Nexteer Automotive), but GM would not offer a telescoping wheel of their own until the debut of the tilt/telescope wheel offered as an option on 1965 Cadillacs. The GM column was released by twisting a locking ring surrounding the center hub, and offered a 3-inch (76 mm) range of adjustment.
- Swing-away steering wheel
- Introduced on the 1961 Ford Thunderbird, and made available on other Ford products throughout the 1960s, the Swing-away steering wheel allowed the steering wheel to move 9 inches (229 mm) to the right when the transmission selector was in Park, so as to make driver exit and entry easier.
- Tilt-away steering wheel
- Introduced by Ford in 1967 after updates to Federal Motor Vehicle Safety Standards requirements. Though it was an update to the swing-away steering wheel, which did not meet updated safety standards, it offers limited movement but added convenience due to the automatic pop over function over its predecessor.
- Quick release hub steering wheel
- Some steering wheels can be mounted on a detachable hub a.k.a. a quick-release hub. The steering wheel can then be removed without the use of tools, simply by pressing a button. The system is much used in narrow-spaced racing cars, to facilitate the driver getting in and out, and in other cars as well, as an anti-theft device.
The steering wheel should be used with strategic movements of the hand and wrist in spinning motions. Caution and care should be used to ensure the safety of the extremities. The constant motions used must be performed with caution. "Proper posture of the hand-arm system while using hand tools is very important. As a rule, the wrist should not be bent, but must be kept straight to avoid overexertion of such tissues like tendons and tendon sheaths and compression of nerves and blood vessels."
The act of turning the steering wheel while the vehicle is stationary is called dry steering. It is generally advised to avoid dry steering as it puts a strain on the steering mechanism and causes undue wear of the tires.
Buttons and controls on the steering wheel
The first button added to the steering wheel was a switch to activate the car's electric horn. Traditionally located on the steering wheel hub or center pad, the horn switch was sometimes placed on the spokes or activated via a decorative horn ring which obviated the necessity to move a hand away from the rim. Electrical connections are made via a slip ring. A further development, the Rim Blow steering wheel, integrated the horn switch into the steering wheel rim.
In 1966, Ford offered the Highway Pilot Speed Control Option, with steering wheel pad-mounted rocker switches, on its Thunderbird. Uniquely, the Thunderbird also lightly applied the brakes and illuminated the stop lamps when the Retard was continuously depressed with the cruise control on, but not engaged.
In 1974, Lincoln added two rocker switches on the steering wheel to activate various cruise control functions on the Continental and Continental Mark IV. In 1988, Pontiac offered a steering wheel with 12 buttons controlling various audio functions on the Trans-Am, 6000 STE and Bonneville.
In the 1990s, a proliferation of new buttons began to appear on automobile steering wheels. Remote or alternate adjustments could include vehicle audio, telephone, and voice control navigation. Often scroll wheels or buttons are used to set volume levels or page through menus, change radio stations or audio tracks. These controls can use universal interfaces, wired or wirelessly.
This section does not cite any sources. (December 2017) (Learn how and when to remove this template message)
Game controllers are available for arcade cabinets, personal computers, and console games are designed to look and feel like a steering wheel and intended for use in racing games. The least expensive units are paddle controllers with a larger wheel, but many gaming wheels also employ force feedback to simulate the tactile feedback a real driver feels from a steering wheel.
- "Ship Steering Wheel History". Articlesfactory.com. 23 November 2010. Retrieved 20 June 2018.
- Greathouse, John (2008). "Reinvent The Wheel – A Nonstandard Look at Standards". infoChachkie. Archived from the original on 4 December 2010. Retrieved 4 January 2011.
- Duncan, H.O. (1927). The World on Wheels - Volume I. Paris. pp. 456–457, picture of the Vacheron-Car on p. 457.
- "C S Rolls sitting in the first car in Britain fitted with wheel steering, 1898". Science & Society Picture Library. Archived from the original on 16 March 2014. Retrieved 20 March 2014.
- "Albums photos de Krebs: Voitures de course: N° 7 - 8 CV 4 cylindres, Paris - Amsterdam, 1898". Rbmn.free.fr. 10 March 2000. Archived from the original on 20 May 2013. Retrieved 20 March 2014.
- Binder, Al (1 December 2003). "Rear View Mirror". Ward's AutoWorld. Archived from the original on 28 July 2012. Retrieved 20 March 2014.
- Hyde, Charles K. (2009). Storied Independent Automakers: Nash, Hudson, and American Motors. Wayne State University Press. p. 12. ISBN 978-0-8143-3446-1. Retrieved 20 March 2014.
- "The Swift Rambler Family". The World's Work. Vol. 8. 1904. pp. 5218–9. Retrieved 20 March 2014.
- Gottlieb, Robert J. "Nash 600 coupe". Motor Trend. Vol. 29. p. 109. Retrieved 20 March 2014.
- Madden, W. C. (2002). Haynes-Apperson and America's first practical automobile: a history. McFarland. p. 56. ISBN 978-0-7864-1397-3. Retrieved 20 March 2014.
- Oldham, Scott; Lamm, Michael (May 1996). "Happy 100th!". Popular Mechanics. Vol. 173 no. 5. p. 49. Retrieved 20 March 2014.
- "Steering Wheel Folds In Crash". Popular Science. November 1934. p. 32. Retrieved 20 March 2014.
- "1956 Ford Fairlane brochure". Oldcarbrochures.com. p. 6. Archived from the original on 29 November 2012. Retrieved 27 November 2012.
- "Federal Motor Vehicle Safety Standards and Regulations". Nhtsa.dot.gov. Archived from the original on 29 May 2014. Retrieved 20 March 2014.
- Markovich, Alex (April 1965). "Look, Ma-No Wheel!". Popular Mechanics. Vol. 123 no. 4. pp. 91–93. Retrieved 20 March 2014.
- "Standard No. 114; Theft protection and rollaway prevention". U.S. Department of Transportation. 30 March 2010. Archived from the original on 22 May 2013. Retrieved 20 March 2014.
- Gitlin, Jonathan M. "Why you'll never drive your car with a joystick". Ars Technica. Condé Nast. Archived from the original on 26 June 2014. Retrieved 26 June 2014.
- "Steering wheel". Formula 1. Archived from the original on 29 June 2011. Retrieved 20 March 2014.
- Porázik, Juraj; Oravec, Ján (1985). Old time classic cars, 1885-1940. Arco Publishing. p. 16. ISBN 9780668063074. Retrieved 27 November 2012.
- "Tilt Steering Wheel". automotivemileposts.com. Archived from the original on 27 November 2012. Retrieved 27 November 2012.
- Gunnell, John (2005). American Cars of the 1960s: A Decade of Diversity. Krause Publications. p. 10. ISBN 9780896891319. Retrieved 27 November 2012.
- Whipple, Jim (October 1964). "Detroit Report". Popular Science. Vol. 185 no. 4. p. 58. Retrieved 27 November 2012.
- "Archived copy". Archived from the original on 31 May 2016. Retrieved 28 July 2015.CS1 maint: archived copy as title (link)
- "Specifications". Retrieved 20 June 2018.
- "1955 Ford Thunderbird folder". Oldcarbrochures.com. Archived from the original on 29 December 2012. Retrieved 27 November 2012.
- "1956 Ford Thunderbird brochure". Oldcarbrochures.com. Archived from the original on 29 December 2012. Retrieved 27 November 2012.
- "History of Ford Swing-Away, Tilt-Away, and Tilt Steering Wheels". automotivemileposts.com. Archived from the original on 14 March 2017. Retrieved 27 November 2012.
- King, Matthew. "Types of Adjustable Steering Wheels". Forever Sharp Steering Wheels. Archived from the original on 5 May 2018.
- Kroemer, Karl; Kroemer, Henrike; Kroemer-Elbert, Katrin (2001). ErgonomicsHow to Design for Ease and Efficiency (Second ed.). Prentice Hall. ISBN 0-13-752478-1.
- "1966 Ford Thunderbird Highway Pilot Speed Control Option". automotivemileposts.com. Archived from the original on 6 September 2015. Retrieved 5 May 2018.
- "1974 Lincoln Continental Brochure". www.oldcarbrochures.com. Retrieved 20 June 2018.
- "Archived copy". Archived from the original on 12 October 2016. Retrieved 29 July 2015.CS1 maint: archived copy as title (link)
- "DIY for Steering Wheel Removal and Steering Wheel Audio Control Unit Install - Page 6 -". My350z.com. Archived from the original on 22 January 2009. Retrieved 8 December 2009.
- Media related to Steering wheels at Wikimedia Commons