发明名称 |
Negative pressure control apparatus for brake booster |
摘要 |
A negative pressure control apparatus for a brake booster for controlling a negative pressure in a negative pressure chamber of the brake booster is provided. The apparatus is applied to a system having a booster charge mechanism for generating a fluid pressure by using the negative pressure in the negative pressure chamber and a fluid pressure control mechanism for controlling a brake fluid pressure by using the fluid pressure generated by the booster charge mechanism as a fluid pressure source. The apparatus includes a negative pressure controller for controlling the negative pressure in the negative pressure chamber to be at least a predetermined target negative pressure. A temperature detector detects information relating to a temperature of brake fluid. A target negative pressure setting part sets the predetermined negative pressure based on the temperature of the brake fluid.
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申请公布号 |
US6244676(B1) |
申请公布日期 |
2001.06.12 |
申请号 |
US19990298175 |
申请日期 |
1999.04.23 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
WATANABE RYOCHI;YAMADA YOSHIHISA;ENDO HIROAKI |
分类号 |
B60T17/00;B60T13/68;B60T13/72;B60T17/02;F02D41/30;(IPC1-7):B60T8/32 |
主分类号 |
B60T17/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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