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1. US20120111956 - Control device for a vehicle that includes a thermowax switching valve

官庁 アメリカ合衆国
出願番号 13384526
出願日 04.12.2009
公開番号 20120111956
公開日 10.05.2012
特許番号 09188054
特許付与日 17.11.2015
公報種別 B2
IPC
G05D 23/02
G物理学
05制御;調整
D非電気的変量の制御または調整系
23温度の制御
01補助動力のないもの
02温度変化によって膨脹収縮する検出要素をもつもの
F01P 7/16
F機械工学;照明;加熱;武器;爆破
01機械または機関一般;機関設備一般;蒸気機関
P機械またはエンジンの冷却;内燃機関の冷却
7冷媒流の制御
14冷媒が液体であるもの
16温度制御によるもの
G05D 23/19
G物理学
05制御;調整
D非電気的変量の制御または調整系
23温度の制御
19電気的手段の使用によって特徴づけられたもの
CPC
F01P 7/167
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
7Controlling of coolant flow
14the coolant being liquid
16by thermostatic control
167by adjusting the pre-set temperature according to engine parameters, e.g. engine load, engine speed
F01P 2025/32
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
2025Measuring
08Temperature
32Engine outcoming fluid temperature
F01P 2070/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
2070Details
04using electrical heating elements
G05D 23/1921
GPHYSICS
05CONTROLLING; REGULATING
DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
23Control of temperature
19characterised by the use of electric means
1919characterised by the type of controller
1921using a thermal motor
出願人 Shigeki Kinomura
TOYOTA JIDOSHA KABUSHIKI KAISHA
Osamu Shintani
Taro Furukoshi
Atsushi Komada
発明者 Shigeki Kinomura
Osamu Shintani
Taro Furukoshi
Atsushi Komada
代理人 Sughrue Mion, PLLC
発明の名称
(EN) Control device for a vehicle that includes a thermowax switching valve
要約
(EN)

An electronic control unit (12) calculates the heat receiving quantity of a thermo wax to estimate the temperature of the thermo wax on the basis of the calculated heat receiving quantity and the heat capacity of the thermo wax, and controls a heater so that the temperature of the thermo wax reaches a predetermined target value. Further, the electronic control unit (12) changes the value of the heat capacity used to estimate the temperature of the thermo wax depending on the variation of the estimated temperature of the thermo wax across the phase transition point of the thermo wax so as to preferably control a switching valve which is operated by heating the thermo wax.