Engineering:Modular vehicle
A modular vehicle is one in which substantial components of the vehicle are interchangeable. This modularity is intended to make repairs and maintenance easier, or to allow the vehicle to be reconfigured to suit different functions.
Another application of modular vehicle design is to enable the exchange of batteries in an electric vehicle.
In a modular electric vehicle, the power system, wheels and suspension can be contained in a single module or chassis. When the batteries need recharging, the vehicle's body is lifted off and placed onto a fresh power module. By using this Modular Vehicle system, the vehicle's batteries do not have to be removed or reinstalled, and their connections remain intact.
History of the modern modular vehicle
The world's first road-licensed quick-change modular electric vehicle, based on a patent awarded to Dr Gordon E Dower in 2000,[1] was shown at the World Electric Vehicle Association 2003 Electric Vehicle Symposium EVS-20 in Long Beach, California, USA.[citation needed]
Dower described the vehicle's two parts as its motorized deck, shortened to Modek, and its "containing module" or Ridon. When attached to each other, the vehicle thus formed was dubbed the Ridek. Mechanical connections between the modules for braking and steering automatically engage when the body is lowered on to the chassis.[citation needed]
In 2004, General Motors attempted to patent a modular vehicle[2] called Autonomy,[citation needed] but the attempt was unsuccessful because Dower’s patent already existed.[3]
A team at GM did, however, continue to work on Autonomy, which was intended to be powered by a hydrogen fuel cell. They unveiled a non-drivable version of their modular vehicle in January 2002 at the Detroit Auto Show.[4] GM unveiled a drivable prototype, called Hy-wire at the Paris Auto Show in September, 2002.[4] The name referred to the Hydrogen fuel and the "Drive by wire" system that electronically connected the vehicle modules for steering, braking and controlling the 4 wheel motors. Hy-wire did not go into production.[citation needed]
In the 2010s, a number of modular platforms were developed by car manufacturers. Geely Auto developed the Compact Modular Architecture platform (2017), B-segment Modular Architecture platform (2018), and Sustainable Experience Architecture platform (2021). PSA Group and Dongfeng developed the Common Modular Platform (2018)
Flexibility
Modular vehicles make it possible to use different types of bodies, e.g. sedan, sports car or pickup truck, on one standardized chassis.[5]
Also, the modular chassis, with its batteries and motor, are relatively easy to work on, since there is no vehicle body to impede access.
See also
- Electric vehicles
- Modular design
- Rolling chassis
- Skateboard (automotive platform)
References
- ↑ "Modular Vehicle Construction and Transportation System" States6059058 United States patent 6059058, issued 2000-05-09
- ↑ "Vehicle Body Interchangeability" StatesUS 2005/0049944 A1 United States patent US 2005/0049944 A1, published 2005-03-03, assigned to General Motors Corp. (application 10/966,548)
- ↑ Patent application 10/966,548, denied 2/23/2006, attorney docket no: GP -3015791/GM0268PUS-1
- ↑ 4.0 4.1 King, Ralph, "GM's Race to the Future - the inside story of how the world's biggest automaker came to see the hydrogen car as its salvation - and took the lead in the engineering challenge of the century", Business 2.0 Magazine, Oct 1, 2003.
- ↑ Chernoff, Adrian B et al, 2003 US Patent: "Vehicle body interchangeability"
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