MEASURING APPARATUS OF POWER TRANSFER LOSS OF GEAR BOX

• Main Author: KODAMA TAKUO
• Format: Patent
• Language: English
• Published: 24.10.1984
• Subjects: ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES; ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; MEASURING; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE; PERFORMING OPERATIONS; PHYSICS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR; TRANSPORTING; VEHICLES IN GENERAL

PURPOSE:To enable the accurate measurement of a power transfer loss in a short time, by providing a loss computing circuit which computes said transfer loss from a detection value of the state of each section of a gear box and prescribed correlation data. CONSTITUTION:A gear box power transfer loss computing circuit 62 is supplied with a detected value 106 of a rotation speed, a detected value 110 of an oil quantity, detected values 112, 114 and 116 of oil temperatures and a detected value 118 of temperature from a group of detectors detecting the state values of the sections of a gear box 22 respectively, namely a pickup 34, an oil-quantity detector 36, and temperature detectors 38, 40, 42 and 44, and further it is supplied with a detected torque value 120 from a load cell 30. In the computing circuit 62, a power transfer loss of the gear box 22 is computed accurately from said output values and the correlation data of the state value of each section of the gear box 22 indicated beforehand and the powe transfer loss. Thus, the power transfer loss can be measured accurately in a short time.