Patent ID: 8449049

Claim:
An electric braking system for a road vehicle that includes at least two wheels, each wheel being connected for rotation to a respective rotary electric machine, the electric braking system comprising: first and second sub-systems connected to a central electric line of the vehicle, the first sub-system controlling braking in a first subset of the at least two wheels, and the second sub-system controlling braking in a second subset of the at least two wheels, the second subset being different from the first subset, wherein the first sub-system includes: a first electronic wheel control module controlling a rotary electric machine of a wheel of the first subset, the first electronic wheel control module enabling a first control torque of a determined amplitude and sign to be imparted selectively to the wheel of the first subset, such that the wheel of the first subset imparts to the vehicle a drive force or a braking force in accordance with the first control torque, the first and second sub-systems being independent of each other, and a first dissipation device controlled by a first electronic dissipation module, the first dissipation device being connected to the first electronic wheel control module, wherein the second sub-system includes: a second electronic wheel control module controlling a rotary electric machine of a wheel of the second subset, the second electronic wheel control module enabling a second control torque of a determined amplitude and sign to be imparted selectively to the wheel of the second subset, such that the wheel of the second subset imparts to the vehicle a drive force or a braking force in accordance with the second control torque, and a second dissipation device controlled by a second electronic dissipation module, the second dissipation device being connected to the second electronic wheel control module, wherein the central electric line is arranged such that: if the first dissipation device becomes inoperative, electrical power produced by the first sub-system is channeled towards the second dissipation device, and if the second dissipation device becomes inoperative, electrical power produced by the second sub-system is channeled towards the first dissipation device, wherein a capacity of the first dissipation device is sufficient to process both the electric produced by the first sub-system and the electric power produced by the second sub-system to allow the electric braking system to retain full braking ability, and wherein a capacity of the second dissipation device is sufficient to process both the electric power produced by the first sub-system and the electric power produced by the second sub-system to allow the electric braking system to retain full braking ability.