Power transmission control apparatus for vehicle

摘要

A manual transmission including an input shaft Ai receiving power from an internal combustion engine through a clutch, an output shaft Ao receiving power from an electric motor, an EV gear stage for EV travel (different from neutral) in which no power transmission route is established between Ai and Ao, and a plurality of gear stages for HV travel in which a power transmission route is established between Ai and Ao. The movement of a shift lever SL from the neutral position to an EV-gear-stage shift completion position and the movement of the shift lever SL from the neutral position to the EV-gear-stage shift completion position is permitted only in a state in which the clutch pedal CP is depressed to provide an HV-MT vehicle power transmission control apparatus that includes a mechanism requiring a driver to operate a clutch pedal at the time of gear change.

主权项

1. A power transmission control apparatus for a vehicle which includes an internal combustion engine (E/G) and an electric motor (M/G) as power sources, comprising:
a manual transmission (M/T) which does not include a torque converter and includes: an input shaft (Ai) which receives power from the internal combustion engine, an output shaft (Ao) which receives power from the electric motor and which outputs power to a drive wheel of the vehicle, and a transmission mechanism (M) configured such that when a driver moves a shift operation member (SL) on a shift pattern to a hybrid-travel-stage shift completion position corresponding to a selected one of a plurality of gear stages (2-nd to 5-th gears) for hybrid travel in which the vehicle travels using both drive force of the internal combustion engine and drive force of the electric motor, the transmission mechanism establishes a power transmission route between the input shaft and the output shaft, the power transmission route having a transmission speed reduction ratio, which is the ratio of rotational speed of the input shaft to that of the output shaft, for the selected gear stage, and when the driver moves the shift operation member on the shift pattern to a motor-travel-stage shift completion position corresponding to a gear stage (EV gear) for motor travel in which the vehicle travels using only the drive force of the electric motor, the transmission mechanism establishes no power transmission route between the input shaft and the output shaft; and a friction clutch (C/T) which is interposed between the output shaft (Ae) of the internal combustion engine and the input shaft (Ai) of the manual transmission and whose engagement state changes in accordance with an operation quantity of a clutch operation member (CP) operated by the driver, wherein the transmission mechanism includes a movement restraining mechanism configured such that in a state in which the clutch operation member is not operated, the movement restraining mechanism prohibits movement of the shift operation member, on the shift pattern, to the motor-travel-stage shift completion position from a neutral position which differs from the motor-travel-stage shift completion position and in which no power transmission route is established between the input shaft and the output shaft, and in a state in which the clutch operation member is operated, the movement restraining mechanism permits movement of the shift operation member, on the shift pattern, from the neutral position to the motor-travel-stage shift completion position.