Drucksteuerungsvorrichtung für den Kraftstofftank eines Fahrzeugs
Anmelder: TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota Jidosha Kabushiki Kaisha 🇯🇵
Details
- Veröffentlichungs-Nr.
- EP3037294
- Aktenzeichen
- EP15199827
- Anmeldetag
- 14. Dezember 2015
- Veröffentlichung
- 1. Mai 2019
- Erteilung
- 1. Mai 2019
- Rechtsraum
- EP
- IPC
- B60K15/035
Abstract
In pressure increasing control for raising a pressure within a sealed type fuel tank from an excessive negative pressure to a low negative pressure, an opening or closing operation of a sealing valve, when the interior of a vehicle is very quiet, would cause the working noise thereof to be transmitted to a passenger, thereby deteriorating the noise characteristic. In order to solve this problem, a control unit 32, when the pressure within a fuel tank 14 is below a predetermined negative pressure P VL near a saturated vapor pressure of the fuel and an interior noise level is equal to or greater than a threshold value, operates a sealing valve 28 to thereby raise the pressure of the fuel tank 14 to a normal negative pressure region P L to P U which is higher than the predetermined negative pressure P VL .
Anmelder
- Firmen
- TOYOTA JIDOSHA KABUSHIKI KAISHA
Toyota Jidosha Kabushiki Kaisha - Land
- 🇯🇵 Japan
Japanischer Automobilhersteller mit Sitz in Toyota City, gegründet 1937. Entwickelt und produziert Pkw, Nutzfahrzeuge, Hybrid- und Wasserstoffantriebe sowie zugehörige Fahrzeugtechnologien.
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