| 摘要 |
PROBLEM TO BE SOLVED: To provide a control device for a belt type continuously variable transmission to reduce consumption energy of an oil pump, perform idle stop control to stop an engine during a stop of a vehicle, and additionally stably hold belt capacity on the secondary pulley side during gear shifting. SOLUTION: A change gear ratio control means (d) comprises a first motor- driven oil pump (e) to feed a controlled secondary pressure directly to the oil chamber of a secondary pulley (b), a second motor-driven oil pump (f) to directly feed a primary pressure to the oil chamber of a primary pulley (a) and reciprocating oil between the oil chambers of the primary pulley (a) and the secondary pulley (b), a second controller (g) to control drive of a second motor-driven oil pump (f) so that a determined speed change control amount is obtained, and a first controller (h) to drive and control the first motor-driven oil pump (e) by adding feed forward compensation, corresponding to a change of a speed change control amount to the second motor-driven oil pump (f), to feedback control through which an actual secondary pressure is caused to coincide with a target secondary pressure necessary to hold belt capacity. |
