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Electronic stability control (ESC), also referred to as electronic stability program (ESP) or dynamic stability control (DSC), is a computerized technology [1] [2] that improves a vehicle's stability by detecting and reducing loss of traction . [3]
The predecessor of modern electronic traction control systems can be found in high-torque, high-power rear-wheel-drive cars as a limited slip differential.A limited-slip differential is a purely mechanical system that transfers a relatively small amount of power to the non-slipping wheel, while still allowing some wheel spin to occur.
A differential in a car is constructed to drive a set of wheels and allows them to rotate at different speeds. If a car doesn't have a differential, this would make turning difficult and cause greater tire wear. In cars with CWS and ESP, the differential has many sensors and electronics to be able to control the differential using software.
CBC is expected to be included in autonomous vehicles as the technology can work with future vehicle control systems to ensure brake safety while turning. [6] CBC can already autonomously engage the vehicle brakes in case of an emergency but lacks the necessary signals needed to control the vehicle without any human input.
For example, if a car is making a left turn and begins to understeer (the car plows forward to the outside of the turn) ESC activates the left rear brake, which will help turn the car left. The sensors are so sensitive and the actuation is so quick that the system may correct direction before the driver reacts.
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Modern electronic stability control (ESC) systems are an evolution of the ABS concept. Here, a minimum of two additional sensors are added to help the system work: these are a steering wheel angle sensor and a gyroscopic sensor. The theory of operation is simple: when the gyroscopic sensor detects that the direction taken by the car does not ...
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