IP Library Granted Patent US 8,708,429
Granted Patent B2
US 8,708,429 · App. 13/086,637 · Granted Apr 29, 2014

Hydraulic braking assembly for a vehicle comprising a hydraulic fluid level sensor

Inventors: Vincent Maury (Asnieres sur Seine, FR); Jean-Michel L'Aot (Stains, FR); Antony Auguste (Villiers sur Marne, FR); Philippe Richard (Chelles, FR); François Gaffe (Bondy, FR); Bastien Cagnac (Cramoisy, FR)
Assignee: Robert Bosch GmbH
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Quick Facts
Patent No.
US 8,708,429
App. No.
13/086,637
Granted
Apr 29, 2014
Kind
B2
Abstract

A hydraulic braking assembly ( 14 ) for a vehicle comprising an electric servomotor ( 15 ), a master cylinder ( 16 ), a hydraulic fluid tank ( 17 ) mounted on the master cylinder, a hydraulic fluid level sensor ( 25 ) situated inside the fluid tank and monitoring the hydraulic fluid level inside the tank. The fluid level sensor is connected from the tank to the computer of the electric servomotor by a cable ( 26 ).

Claims (11)

1. A hydraulic braking assembly ( 14 ) comprising an electric servomotor ( 15 ) including an electric motor ( 22 ) and a computer ( 19 ), the computer being connected to a central control member by a first cable ( 24 ) and being used to actuate the electric motor when a brake pedal is actuated by a driver, a master cylinder ( 16 ) connected to the servomotor by a support piston ( 23 ) actuated by the motor of the servomotor, a hydraulic fluid tank ( 17 ) mounted on the master cylinder, said tank communicating with a chamber of the master cylinder to feed the master cylinder with hydraulic fluid, a hydraulic fluid level sensor ( 25 ) situated in a wall of the fluid tank to monitor the hydraulic fluid level inside the tank, characterized in that the fluid level sensor is connected from the tank to the computer of the electric servomotor by an electrical connector connected directly to the computer ( 19 ).

2. A hydraulic braking assembly according to claim 1 , characterized in that the computer of the servomotor has circuits for transmitting the signal from the sensor to the central control member.

3. A hydraulic braking assembly according to claim 1 , characterized in that the computer of the servomotor has circuits for processing the signal from the sensor and transmitting processed signals to the central control member.

4. A hydraulic braking assembly according to claim 1 , characterized in that the tank has a face that faces toward the computer, and the electrical connector leaves from this face.

5. A hydraulic braking assembly according to claim 1 , wherein the computer of the servomotor has circuits both for transmitting the signal from the sensor to the central control member and for processing the signal from the sensor and transmitting processed signals to the central control member.

6. A hydraulic braking assembly according to claim 1 , characterized in that the sensor is located proximal to the computer, such that a length of the electrical connector is as short as possible.

7. A hydraulic braking assembly ( 14 ) comprising an electric servomotor ( 15 ) including an electric motor ( 22 ) and a computer ( 19 ), the computer being connected to a central control member by a first cable ( 24 ) and being used to actuate the electric motor when a brake pedal is actuated by a driver, a master cylinder ( 16 ) connected to the servomotor by a support piston ( 23 ) actuated by the motor of the servomotor, a hydraulic fluid tank ( 17 ) mounted on the master cylinder, said tank communicating with a chamber of the master cylinder to feed the master cylinder with hydraulic fluid, a hydraulic fluid level sensor ( 25 ) situated in a wall of the fluid tank to monitor the hydraulic fluid level inside the tank, characterized in that the fluid level sensor is connected from the tank to the computer of the electric servomotor by a connection means ( 26 ), and wherein the computer of the servomotor has circuits for transmitting the signal from the sensor to the central control member.

8. A hydraulic braking assembly according to claim 7 , wherein the computer of the servomotor has circuits for processing the signal from the sensor and transmitting processed signals to the central control member.

9. A hydraulic braking assembly according to claim 7 , wherein the tank has a face that faces toward the computer, and the connection means leaves from this face.

10. A hydraulic braking assembly ( 14 ) comprising an electric servomotor ( 15 ) including an electric motor ( 22 ) and a computer ( 19 ), the computer being connected to a central control member by a first cable ( 24 ) and being used to actuate the electric motor when a brake pedal is actuated by a driver, a master cylinder ( 16 ) connected to the servomotor by a support piston ( 23 ) actuated by the motor of the servomotor, a hydraulic fluid tank ( 17 ) mounted on the master cylinder, said tank communicating with a chamber of the master cylinder to feed the master cylinder with hydraulic fluid, a hydraulic fluid level sensor ( 25 ) situated in a wall of the fluid tank to monitor the hydraulic fluid level inside the tank, characterized in that the fluid level sensor is connected from the tank to the computer of the electric servomotor by a connection means ( 26 ), and wherein the computer of the servomotor has circuits for processing the signal from the sensor and transmitting processed signals to the central control member.

11. A hydraulic braking assembly according to claim 10 , wherein the tank has a face that faces toward the computer, and the connection means leaves from this face.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 14, 2011
From: MAURY, VINCENT; L'AOT, JEAN-MICHEL; AUGUSTE, ANTONY; RICHARD, PHILIPPE; GAFFE, FRANCOIS; CAGNAC, BASTIEN
To: ROBERT BOSCH GMBH
Reel/Frame 026126/0407 →
Priority Claims (1)
FR 10 01590 · Apr 14, 2010 · national
Continuity (1)
Related Publication 20110254362A1 · Oct 20, 2011