Electric Braking Device for Vehicles

• US 20080015761A1
• Filed: 11/21/2005
• Published: 01/17/2008
• Est. Priority Date: 11/25/2004
• Status: Active Grant

• Current Assignee: Renault Sas (Renault)
• Original Assignee: Renault Sas (Renault)
• Inventors: Bellego, Laurent
• Granted Patent: US 9,020,724 B2
• Time in Patent Office: Days
• US Class Current: 701/70
• CPC Class Codes: B60T 13/74 with electrical assistance or drive

Abstract

The invention relates to an electric braking device for a vehicle. The inventive device comprises: front wheel (4a, 4b) and/or rear wheel (4c, 4d) braking modules which are not powered when the vehicle is in the standby state; at least one on-board computer (1); at least one user control module (2, 3) which, upon the users request, delivers a power supply control signal (Sc1, Sc2) in order to control the power supply to the braking modules and braking control signals (S2a, S2b; S3a, S3b) in order to activate the braking modules when said modules are powered; and means for cutting the power supply to the braking modules once the vehicle has zero speed and the wheels are immobilised under the action of the braking modules. The invention can be used to reduce the power consumption of vehicles. The invention relates to an electric braking device for a vehicle. The inventive device comprises: front wheel (4a, 4b) and or rear wheel (4c, 4d) braking modules which are not powered when the vehicle is in the standby state; at least one on-board computer (1); at least one user control module (2, 3) which, upon the user'"'"'s request, delivers a power supply control signal (Sc1, Sc2) in order to control the power supply to the braking modules and braking control signals (S2a, S2b; S3a, S3b) in order to activate the braking modules when said modules are powered; and means for cutting the power supply to the braking modules once the vehicle has zero speed and the wheels are immobilised under the action of the braking modules. The invention can be used to reduce the power consumption of vehicles.

Claims

1-9. -9. (canceled)

10. A vehicle electric braking device, comprising:

braking modules for front wheels and/or for rear wheels of the vehicle, not supplied when the vehicle is in a standby state;

at least one onboard computer;

at least one user control module which, when activated by a user, delivers to the onboard computer a supply control signal to control a supply of the front wheel and/or rear wheel braking modules and delivers, to the front wheel braking modules and/or rear wheel braking modules, braking control signals to activate the front and/or rear wheel braking modules when the braking modules are supplied; and

means for disconnecting the supply of the front and/or rear wheel braking modules when the vehicle has a zero speed and the front and/or rear wheels of the vehicle are immobilized under action of the braking modules.

11. The device as claimed in claim 10, wherein the user control module comprises at least one sensor configured to detect a pressure of the user on a contact element.

14. The device as claimed in claim 10, including front wheel braking modules and rear wheel braking modules, wherein the braking control signal delivered to the left front wheel braking module is also delivered to the left rear wheel braking module, and the braking control signal delivered to the right front wheel braking module is also delivered to the right rear wheel braking module.

15. The device as claimed in claim 10, including front wheel braking modules and rear wheel braking modules, and including a first user control module and a second user control module, wherein the braking control signal delivered by the first user control module to the left front wheel braking module is also delivered to the right rear wheel braking module, the braking control signal delivered by the first user control module to the right front wheel braking module is also delivered to the left rear wheel braking module, the braking control signal delivered by the second user control module to the left font wheel braking module is also delivered to the right rear wheel braking module, and the braking control signal delivered by the second user control module to the right front wheel braking module is also delivered to the left rear wheel braking module.

17. The device as claimed in claim 10, further comprising means for detecting a degraded operating mode of the braking modules of the vehicle in a start state or in a start and stop mode and means for making it possible to brake vehicle in the start state or in the start and stop mode with aid of the user control module when a degraded operating mode is detected.

18. The device as claimed in claim 17, further comprising a communication network allowing the braking modules to communicate with one another to confirm that a vehicle braking request with aid of the user control module is required and, if the braking request is confirmed, means for maintaining stability of the vehicle when the braking of the vehicle is applied.

16. The device as claimed in claim 20, including front wheel braking modules and rear wheel braking modules, and including a first user control module and a second user control module, wherein the braking control signal delivered by the first user control module to the left front wheel braking module is also delivered to the left rear wheel braking module, the braking control signal delivered by the first user control module to the right front wheel braking module is also delivered to the right rear wheel braking module, the braking control signal delivered by the second user control module to the left front wheel braking module is also delivered to the left rear wheel braking module, and the braking control signal delivered by the second user control module to the right front wheel braking module is also delivered to the right rear wheel braking module.