Hybrid vehicle driving system, hybrid vehicle, and driving method
First Claim
Patent Images
1. A hybrid vehicle driving system comprising:
- an electric motor;
an external combustion engine; and
a power transmission section configured to selectively transmit power output by one of the external combustion engine and the electric motor to a wheel,wherein the electric motor is mechanically coupled to the power transmission section via a first gear and the external combustion engine is mechanically coupled to the power transmission section via a second gear;
wherein the power transmission section comprises;
an output calculation device configured to calculate an output value to be output by the external combustion engine depending on power to be transmitted to the wheel;
an output comparison device configured to compare the calculated output value to a detected current output value of the external combustion engine; and
a power selection device configured to select power to be transmitted to the wheel according to a difference between the calculated output value and the detected current output value output of the external combustion engine.
5 Assignments
0 Petitions
Accused Products
Abstract
When a driver turns on an accelerator, a CPU permits revolution of planetary gears, and a motor rotates a ring gear to drive wheels. Then, when the driver turns off the accelerator, the CPU calculates a target RPM to be output by a Stirling engine according to a depression amount and a depression time of the accelerator. When the RPM output by the Stirling engine reaches close to the target RPM, the revolution of the planetary gears is inhibited, the operation of the motor is stopped, and the Stirling engine rotates the ring gear via a sun gear and the planetary gears to drive the wheels.
64 Citations
22 Claims
-
1. A hybrid vehicle driving system comprising:
-
an electric motor; an external combustion engine; and a power transmission section configured to selectively transmit power output by one of the external combustion engine and the electric motor to a wheel, wherein the electric motor is mechanically coupled to the power transmission section via a first gear and the external combustion engine is mechanically coupled to the power transmission section via a second gear; wherein the power transmission section comprises; an output calculation device configured to calculate an output value to be output by the external combustion engine depending on power to be transmitted to the wheel; an output comparison device configured to compare the calculated output value to a detected current output value of the external combustion engine; and a power selection device configured to select power to be transmitted to the wheel according to a difference between the calculated output value and the detected current output value output of the external combustion engine. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A hybrid vehicle comprising:
-
a hybrid vehicle driving system comprising; an electric motor; an external combustion engine; and a power transmission section configured to selectively transmit power output by one of the external combustion engine and the electric motor to a wheel; and wherein the wheel is configured to be driven by the hybrid vehicle driving system; wherein the electric motor is mechanically coupled to the power transmission section via a first gear and the external combustion engine is mechanically coupled to the power transmission section via a second gear; and wherein the power transmission section comprises; an output calculation device configured to calculate an output value to be output by the external combustion engine depending on power to be transmitted to the wheel; a sensor configured to detect a current output value of the external combustion engine; an output comparison device configured to compare the calculated output value to the current output value output by the external combustion engine; and a power selection device configured to select power to be transmitted to the wheel according to a difference between the calculated output value and the detected current output value output of the external combustion engine. - View Dependent Claims (14, 15, 16)
-
-
17. A method for driving a driving system including an electric motor that is mechanically coupled to a power transmission section via first gear, an external combustion engine, and the power transmission section configured to selectively transmit power output by one of the external combustion engine and the electric motor to a wheel, the method comprising:
-
calculating, by the power transmission section, an output value to be output by the external combustion engine depending on power to be transmitted to the wheel, wherein the external combustion engine is mechanically coupled to the power transmission section via a second gear; detecting, by an engine sensor, a current output value output by the external combustion engine; comparing, by an output comparison device of the power transmission section, the calculated output value to the current output value output by the external combustion engine; and selecting, by the power transmission section, power to be transmitted to the wheel according to a difference between the calculated output value and the detected current output value output of the external combustion engine. - View Dependent Claims (18, 19, 20, 21, 22)
-
Specification