US3829166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brake control apparatus for a motor car
Assignee: Robert Bosch GmbH
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Filing: 1973-02-16
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Granted: 1974-08-13
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Expires: 1993-02-16
Abstract
Abstract The brake system of a motor car is controlled by a portion of the drive shaft of the car. The speed of the drive shaft is higher, but proportionate to the speed of the wheel shaft. A pulse generating sensor is operated by the drive shaft portion which is already provided in the motor car, to supply pulses at a frequency which varies with the shaft speed, to an electronic control means which responds in dependence upon the pulses to interrupt communication between the master cylinder and the wheel brake cylinder by operation of an electro-magnetic valve.
Inventors
- 👤 Loewis Of Menar A Von
- 👤 K Riesenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:18
CPC Classifications
B; B60; B60T; B60T8/00; B60T8/32; B60T8/34; B60T8/40; B60T8/4018; B60T8/4027; B60T8/17; B60T8/176; B60T8/1761; B60T8/17613; B60T8/321; B60T8/329; B60T8/36; B60T8/3615; B60T8/3675; B60T8/368; B60T8/4031; B60T8/50; B60T8/5018; B60T8/5025; B60T8/5037
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
183 words
A brake control apparatus for a motor car, comprising drive shaft means including a drive shaft portion; housing means for said drive shaft portion; a pulse generating sensor in said housing means including a rotary means carried by said drive shaft portion, and stationary means supported by housing means so that pulses are generated in said stationary means at a frequency depending on the rotary speed of said drive shaft portion; a pressure fluid containing brake system for braking the motor car including a master cylinder, at least one brake cylinder, brake means for the wheels of the car, and control valve means between said master cylinder and said brake cylinder; and control means operative for receiving said pulses and controlling said control valve means in dependence upon said pulses, said housing means including a first housing portion for said drive shaft portion and for said rotary means of said pulse generating sensor and having a radial opening, and a second housing portion supporting said stationary means in a position projecting through said opening toward said rotary means of said pulse generating sensor.
Claim 2
Dependent Claim
183 words
A brake control apparatus for a motor car, comprising drive shaft means including a drive shaft portion; housing means for said drive shaft portion; a pulse generating sensor in said housing means including a rotary means carried by said drive shaft portion, and stationary means supported by housing means so that pulses are generated in said stationary means at a frequency depending on the rotary speed of said drive shaft portion; a pressure fluid containing brake system for braking the motor car including a master cylinder, at least one brake cylinder, brake means for the wheels of the car, and control valve means between said master cylinder and said brake cylinder; and control means operative for receiving said pulses and controlling said control valve means in dependence upon said pulses, said housing means including a first housing portion for said drive shaft portion and for said rotary means of said pulse generating sensor and having a radial opening, and a second housing portion supporting said stationary means in a position projecting through said opening toward said rotary means of said pulse generating sensor.
Claim 3
Dependent Claim
18 words
Brake control apparatus as claimed in claim 1 comprising a differential transmission driven by said drive shaft portion.
Claim 4
Dependent Claim
85 words
Brake control apparatus as claimed in claim 2 wherein said first housing portion includes a portion housing said differential transmission, and a tubular housing portion including two bearings for supporting the ends of said drive shaft portion in said tubular housing portion; wherein said rotary means of said pulse generating sensor is secured to said drive shaft portion between said bearings; wherein said radial opening is formed in said tubular housing portion; and wherein said second housing portion is supported on said tubular housing portion.
Claim 5
Dependent Claim
54 words
Brake control apparatus as claimed in claim 1 comprising a main transmission including a transmission housing; wherein said drive shaft means is the output shaft of said main transmission; wherein said housing means is secured to said transmission housing; and wherein said drive shaft portion projects from said transmission housing into said housing means.
Claim 6
Dependent Claim
267 words
A brake control apparatus for a motor car, comprising drive shaft means including a drive shaft portion; housing means for said drive shaft portion; a pulse generaTing sensor in said housing means including a rotary means carried by said drive shaft portion, and stationary means supported by said housing means so that pulses are generated in said stationary means at a frequency depending on the rotary speed of said drive shaft portion; a pressure fluid containing brake system for braking the motor car including a master cylinder, at least one brake cylinder, brake means for the wheels of the car, and control valve means between said master cylinder and said brake cylinder; and control means operative for receiving said pulses and controlling said control valve means in dependence upon said pulses, said housing means including a first housing portion for said drive shaft portion and for said rotary means of said pulse generating sensor and having a radial opening, and a second housing portion supporting said stationary means in a position projecting through said opening toward said rotary means of said pulse generating sensor, wherein said housing means include a first housing portion for said drive shaft portion and for said rotary means of said pulse generating sensor and having a radial opening, a second housing portion supporting said stationary means in a position projecting through said opening toward said rotary means of said pulse generating sensor, and a third housing portion housing said control means, said control valve means, and conduit means for connecting said master cylinder and said brake cylinder with said control valve means.
Claim 7
Dependent Claim
267 words
A brake control apparatus for a motor car, comprising drive shaft means including a drive shaft portion; housing means for said drive shaft portion; a pulse generaTing sensor in said housing means including a rotary means carried by said drive shaft portion, and stationary means supported by said housing means so that pulses are generated in said stationary means at a frequency depending on the rotary speed of said drive shaft portion; a pressure fluid containing brake system for braking the motor car including a master cylinder, at least one brake cylinder, brake means for the wheels of the car, and control valve means between said master cylinder and said brake cylinder; and control means operative for receiving said pulses and controlling said control valve means in dependence upon said pulses, said housing means including a first housing portion for said drive shaft portion and for said rotary means of said pulse generating sensor and having a radial opening, and a second housing portion supporting said stationary means in a position projecting through said opening toward said rotary means of said pulse generating sensor, wherein said housing means include a first housing portion for said drive shaft portion and for said rotary means of said pulse generating sensor and having a radial opening, a second housing portion supporting said stationary means in a position projecting through said opening toward said rotary means of said pulse generating sensor, and a third housing portion housing said control means, said control valve means, and conduit means for connecting said master cylinder and said brake cylinder with said control valve means.
Claim 8
Dependent Claim
20 words
Brake control apparatus as claimed in claim 5 wherein said third housing portion is secured to said second housing portion.
Claim 9
Dependent Claim
40 words
Brake control apparatus as claimed in claim 5 wherein said third housing portion has attaching openings connected with said conduit means; and wherein said master cylinder and said brake cylinder have connector conduit pieces for insertion into said attaching openings.
Claim 10
Dependent Claim
38 words
Brake control system as claimed in claim 5 wherein said control valve means include electromagnetic means; wherein said control means are electronic means; and wherein said pulse generating sensor generates electric pulses supplied to said electronic control means.
Claim 11
Dependent Claim
35 words
Brake control apparatus as claimed in claim 5 further comprising a pump and a pressure accumulator in said third housing portion, said pump pumping into said master cylinder and drawing fluid from said pressure accumulator.
Claim 12
Dependent Claim
58 words
Brake control apparatus as claimed in claim 9 wherein said pump includes eccentric means secured to said drive shaft portion, cam follower means engaging said eccentric means and mounted in said second housing portion, a cylinder in said third housing portion, and a piston in said cylinder connected with said cam follower means so as to be reciprocated.
Claim 13
Dependent Claim
48 words
Brake control apparatus as claimed in claim 10 wherein said rotary means is a magnetic gear secured to said drive shaft portion; wherein said stationary means includes a winding for generating pulses; and wherein said eccentric means is secured to said drive shaft portion adjacent said magnetic gear.
Claim 14
Dependent Claim
22 words
Brake control apparatus as claimed in claim 9 comprising an electro motor mounted on said third housing portion for driving said pump.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-12 | 1978-02-11 | 1978-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-12 | 1982-02-11 | 1982-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-12 | 1986-02-11 | 1986-08-13 | $7700.00 | Window Closed / Lapsed |