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US 5,961,188 AGranted
Brake apparatus for a vehicle
AssigneeDenso Corporation
InventorMamoru Sawada
Life of this patent
Estimating the term…
Abstract
A brake apparatus for a vehicle that increases brake-fluid pressure at a wheel or wheels whereat adjustment of brake-fluid pressure by the brake-fluid pressure adjusting device has not yet been initiated, at a time when braking control, i.e., adjustment of brake-fluid pressure by a brake fluid pressure adjusting device, is initiated at a wheel. Consequently, braking force of the wheels not under braking control is increased without additional braking operation by the driver, and substantially maximum braking force can be exhibited at the wheels not under braking control.
Claims8
A vehicle brake apparatus, comprising:
- a brake-fluid pressure generating device which generates brake fluid pressure in correspondence to a state of brake operation by a driver;
- a first wheel braking force generating device which receives brake-fluid pressure from said brake-fluid pressure generating device and generates braking force at a first wheel;
- a second wheel braking force generating device which receives brake-fluid pressure from said brake-fluid pressure generating device and generates braking force at a second wheel;
- a brake fluid conduit to communicate said brake-fluid pressure generating device and said first and second wheel braking-force generating devices;
- a brake-fluid pressure adjusting device which adjusts brake-fluid pressure applied to said first and second wheel braking-force generating devices in response to a road-surface limit to optimally adjust a braking state of said first and second wheels;
- a brake assisting device for increasing the brake fluid pressure of one of the first and second wheel braking force generating devices more rapidly than the brake-fluid pressure generating device;
- and
- said brake assisting device including a pressure increasing device for increasing brake-fluid pressure applied to said first wheel above that generated by said brake-fluid pressure generating device, when said brake-fluid pressure adjusting device initiates brake-fluid pressure adjustment at said second wheel and before said brake-fluid pressure adjusting device initiates brake-fluid pressure adjustment at said first wheel;
- said pressure increasing device likewise for increasing brake-fluid pressure applied to said second wheel above that generated by said brake-fluid pressure generating device when said brake-fluid pressure adjusting device initiates brake-fluid pressure adjustment at said first wheel and before said brake-fluid pressure adjusting device initiates brake-fluid pressure adjustment at said second wheel.
6 more elements
A vehicle brake apparatus, comprising:
- a brake-fluid pressure generating device which generates brake-fluid pressure in correspondence to a state of brake operation by a driver;
- a first wheel braking force generating device which receives brake-fluid pressure from said brake-fluid pressure generating device and generates braking force at a first wheel;
- a second wheel braking force generating device which receives brake-fluid pressure from said brake-fluid pressure generating device and generates braking force at a second wheel;
- a third wheel braking force generating device which receives brake-fluid pressure from said brake-fluid pressure generating device and generates braking force at a third wheel;
- a fourth wheel braking force generating device which receives brake-fluid pressure from said brake-fluid pressure generating device and generates braking force at a fourth wheel;
- a first brake fluid conduit which communicates said brake-fluid pressure generating device with said first and second wheel braking-force generating devices;
- a second brake fluid conduit which communicates said brake-fluid pressure generating device with said third and fourth wheel braking-force generating devices;
- a brake-fluid pressure adjusting device which adjusts brake-fluid pressure applied to each of said first, second, third, and fourth wheel braking-force generating devices in response to a road-surface limit to optimally adjust a braking state of each of said first, second, third, and fourth wheels;
- a brake assisting device for increasing the brake fluid pressure of one of the first, second, third and fourth wheel braking force generating devices more rapidly than the brake-fluid pressure generating device;
- said brake assisting device including a pressure increasing device which increases, at a time when adjustment of brake-fluid pressure applied to at least one of said first, second, third, and fourth wheel braking-force generating devices by said brake-fluid pressure adjusting device is initiated, brake-fluid pressure applied to at least one of said first, second, third and fourth wheels whereat adjustment of brake-fluid pressure by said brake-fluid pressure adjusting device has not yet been initiated, to increase brake-fluid pressure to a level above that generated by said brake-fluid pressure generating device to thereby enhance braking performance at said at least one of said first, second, third, and fourth wheel braking-force generating devices.
7 more elements
Dependencies are inferred from the claim text.