Title:
BRAKE CONTROLLER
Document Type and Number:
WIPO Patent Application WO/2011/064851
Kind Code:
A1
Abstract:
The output pressure of a load-responsive vale (121) is controlled by a pressure-intensifying switchable solenoid valve (111). In the normal braking operation, the output pressure of the load-responsive valve (121) is intensified by the pressure-intensifying switchable solenoid valve (111). The output pressure is then adjusted to a target pressure by a brake control valve (131,132) and further supplied via an intermediate valve (141,142) to the brake cylinder (21,24). In the emergency braking operation, the pressure-intensifying switchable solenoid valve (111) is cut off and the output pressure is supplied via the brake control valve (131,132) and the intermediate valve (141,142) to the brake cylinder (21,24). In case of possible extended braking distance, the pressure-intensifying switchable solenoid valve (111) is turned on to intensify the braking force.
Inventors:
MATSUYAMA ETSUJI (JP)
ITANO YASUHARU (JP)
YAMADA HIROSHI (JP)
ITANO YASUHARU (JP)
YAMADA HIROSHI (JP)
Application Number:
PCT/JP2009/069874
Publication Date:
June 03, 2011
Filing Date:
November 25, 2009
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
MATSUYAMA ETSUJI (JP)
ITANO YASUHARU (JP)
YAMADA HIROSHI (JP)
MATSUYAMA ETSUJI (JP)
ITANO YASUHARU (JP)
YAMADA HIROSHI (JP)
International Classes:
B61H13/30
Foreign References:
| JPH1044964A | 1998-02-17 | |||
| JPH022271U | 1990-01-09 | |||
| JP2007106287A | 2007-04-26 | |||
| JP2007106287A | 2007-04-26 |
Other References:
See also references of EP 2505451A4
Attorney, Agent or Firm:
KIMURA MITSURU (JP)
Mitsuru Kimura (JP)
Mitsuru Kimura (JP)
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