SYSTEM FOR ESTIMATING TEMPERATURE OF VEHICLE HYDRAULICALLY-OPERATED TRANSMISSION专利检索-..大气温度专利检索查询-专利查询网

SYSTEM FOR ESTIMATING TEMPERATURE OF VEHICLE HYDRAULICALLY-OPERATED TRANSMISSION
申请号	CA2213019	申请日	1997-08-14	公开(公告)号	CA2213019A1	公开(公告)日	1998-02-28
申请人	HONDA MOTOR CO LTD;			发明人	TASHIRO YOSHIROU; SUZUKI TOSHIYUKI; TOKITA KANAME; OHASHI TATSUYUKI;
摘要	A system for estimating a temperature of a vehicle hydraulically-operated transmission including a hydraulic torque converter, a plurality of frictional engaging elements such as clutches installed in the transmission and a hydraulic pressure supplying circuit for discharging hydraulic fluid from one of said plurality of frictional engaging elements and for supplying hydraulic fluid to another to bring said one and another one of said plurality of frictional engaging elements into operation such that gear-shift is effected in the transmission. A heat quantity generated by the hydraulic coupling means (.DELTA.Ttr), a heat quantity generated by at least one of the frictional engaging elements at gear-shift (.DELTA. Tcl(No)), a heat quantity generated by stirring of the hydraulic fluid (.DELTA. Tst), a heat quantity generated or absorbed at a heat exchanger which exchanges heat from the fluid (.DELTA. Tra), and some similar values are calculated and summed to estimate a temperature of the clutches, thereby enabling a fine hydraulic pressure control.
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