The Rise of Electronic Controls in the Car Industry
The rapid advancement of electronic controls has transformed the car industry, leading to significant improvements in safety, comfort, and performance. What was once a relatively modest investment in electronics in the 1970s has grown exponentially, with the average car containing nearly $3,000 worth of electronics today. This surge in electronic features has been driven by the need to improve fuel economy and reduce exhaust fumes, as well as to enhance driving experience. Modern electronic controls, such as antilock braking systems (ABS), traction control, and advanced engine management systems, have become essential features in many vehicles.
Key Takeaways:
- The average car in 1970 contained $75 worth of electronics, mostly in the radio, whereas today the average is around $3,000.
- The first electronic application in cars was antilock braking, which monitors wheel speed and acceleration to prevent skids.
- Traction control systems can detect wheel spin and adjust engine power or brake individual wheels to maintain stability.
- Mercedes-Benz's ESP (extra-stability-program) uses sensors and computers to control traction and maintain a safe distance from the car in front.
- Borg Warner's "torque on demand" system monitors sensors 50 times a second and automatically switches between two-wheel and four-wheel drive.
- Ford's Control-Trac system uses a variable clutch to distribute power between axles and prevent skidding.
- The "smart-car" concept involves vehicles that follow pre-programmed routes and use sensors to avoid collisions.
- The Greyhound bus fleet in America uses radar to alert drivers of close proximity to other vehicles.
Statistics:
- $75: The estimated value of electronics in a typical car in 1970.
- $3,000: The average value of electronics in a typical car today.
- 20 times a second: The rate at which antilock braking systems can apply or release brake pressure.
- $300: The average cost of installing an antilock braking system.
- $35: The additional cost of adding traction control to a vehicle.
- 50 times a second: The rate at which Borg Warner's "torque on demand" system monitors sensors.
Sources:
- The Economist
- Craig Fields, chairman of Microelectronics and Computer Technology Corporation
- Mercedes-Benz
- Borg Warner
- Ford
- Greyhound buses in America