Hybrid Vehicle and Driving Resistance Measurement of Hybrid Vehicle
First Claim
1. A hybrid vehicle, comprising:
- an internal combustion engine;
an electric power-mechanical power input output mechanism that is connected to an output shaft of the internal combustion engine and to a drive shaft linked with an axle of said hybrid vehicle and outputs at least part of output power of the internal combustion engine to the drive shaft through input and output of electric power and mechanical power;
a motor that is capable of inputting and outputting power;
a transmission unit that changes a gear ratio set for conversion of a power output from the motor to the drive shaft and a power input from the drive shaft to the motor; and
a driving resistance measurement control module that controls the internal combustion engine, the electric power-mechanical power input output mechanism, the motor, and the transmission unit, in response to a predetermined operation, to set said hybrid vehicle in a driving resistance measurement mode for measurement of a driving resistance of said hybrid vehicle.
1 Assignment
0 Petitions
Accused Products
Abstract
In response to a coasting drive instruction for measurement of a driving resistance of a hybrid vehicle, the coasting control procedure of the invention prohibits a change of a gear position in a transmission and stops both an engine and a motor MG1. The coasting control procedure calculates a canceling torque, which cancels out a torque applied to a ring gear shaft or a drive shaft via a power distribution integration mechanism by generation of an inertia torque accompanied with a rotation speed change of the motor MG1. The calculated canceling torque is set to a torque command Tm2* of a motor MG2, and the motor MG2 is driven and controlled with the torque command Tm2*. This arrangement makes the ring gear shaft or the drive shaft completely free and enables accurate measurement of the driving resistance of the hybrid vehicle during such a coasting drive of the hybrid vehicle in a fully non-driving state.
4 Citations
21 Claims
-
1. A hybrid vehicle, comprising:
-
an internal combustion engine;
an electric power-mechanical power input output mechanism that is connected to an output shaft of the internal combustion engine and to a drive shaft linked with an axle of said hybrid vehicle and outputs at least part of output power of the internal combustion engine to the drive shaft through input and output of electric power and mechanical power;
a motor that is capable of inputting and outputting power;
a transmission unit that changes a gear ratio set for conversion of a power output from the motor to the drive shaft and a power input from the drive shaft to the motor; and
a driving resistance measurement control module that controls the internal combustion engine, the electric power-mechanical power input output mechanism, the motor, and the transmission unit, in response to a predetermined operation, to set said hybrid vehicle in a driving resistance measurement mode for measurement of a driving resistance of said hybrid vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. A driving resistance measurement method of measuring a driving resistance of a hybrid vehicle, said hybrid vehicle comprising:
- an internal combustion engine;
an electric power-mechanical power input output mechanism that is connected to an output shaft of the internal combustion engine and to a drive shaft linked with an axle of said hybrid vehicle and outputs at least part of output power of the internal combustion engine to the drive shaft through input and output of electric power and mechanical power;
a motor that is capable of inputting and outputting power; and
a transmission unit that changes a gear ratio set for conversion of a power output from the motor to the drive shaft and a power input from the drive shaft to the motor,said driving resistance measurement method measuring the driving resistance of said hybrid vehicle, while controlling the internal combustion engine, the electric power-mechanical power input output mechanism, the motor, and the transmission unit to prohibit application of a driving force to the drive shaft via the electric power-mechanical power input output mechanism and the transmission unit. - View Dependent Claims (16, 17, 18, 19, 20, 21)
- an internal combustion engine;
Specification