Control system for hybrid drive unit
First Claim
1. A control system for a hybrid drive unit, in which an assist prime mover is connected through a transmission mechanism to an output member, to which a torque outputted by a main prime mover is transmitted, comprising:
- gear shift control means for switching a shift control condition of said transmission in accordance with an action state of said main prime mover; and
wherein said gear shift control means include means for switching the shift control condition of said transmission in accordance with a situation of a control to startup said main prime mover.
2 Assignments
0 Petitions
Accused Products
Abstract
A control system for a hybrid drive unit, in which an assist prime mover is connected through a transmission mechanism to an output member, to which a torque outputted by a main prime mover is transmitted, comprises gear shift controller for switching a shift control condition of said transmission in accordance with the action state of said main prime mover. A gear shift is inhibited in case a vehicle is run by an assist prime mover, and the gear shift is inhibited also in case the assist prime mover outputs a torque in connection with starting the main prime mover. A transmission is operated into a state just before starting the shifting operation in case the gear shift is inhibited in connection with starting the main prime mover.
36 Citations
17 Claims
-
1. A control system for a hybrid drive unit, in which an assist prime mover is connected through a transmission mechanism to an output member, to which a torque outputted by a main prime mover is transmitted, comprising:
-
gear shift control means for switching a shift control condition of said transmission in accordance with an action state of said main prime mover; and wherein said gear shift control means include means for switching the shift control condition of said transmission in accordance with a situation of a control to startup said main prime mover.
-
-
2. A control system for a hybrid drive unit in which an assist prime mover is connected through a transmission mechanism to an output member, to which a torque outputted by a main prime mover is transmitted, comprising:
-
gear shift control means for switching a shift control condition of said transmission in accordance with an action state of said main prime mover, wherein said main prime mover includes an internal combustion engine which is started by an external force; and wherein said gear shift control means include means for executing a shifting preparatory control to put said transmission into the state just before a gear ratio changes, while said internal combustion engine is being startedby the external force, and means for changing the gear ratio of said transmission after the startup of said internal combustion engine is completed. - View Dependent Claims (3)
-
-
4. A control system for a hybrid drive unit in which an assist prime mover is connected through a transmission mechanism to an output member, to which a torque outputted by a main prime mover is transmitted, comprising:
-
gear shift control means for switching a shift control condition of said transmission in accordance with an action state of said main prime mover, wherein said gear shift control means include gear shift inhibiting means for inhibiting the shift control to change the gear ratio of said transmission, when said assist prime mover outputs the torque in connection with the startup of said main prime mover.
-
-
5. A control system for a hybrid drive unit in which an assist prime mover is connected through a transmission mechanism to an output member, to which a torque outputted by a main prime mover is transmitted, comprising:
-
gear shift control means for switching a shift control condition of said transmission in accordance with an action state of said main prime mover, wherein said gear shift control means include the gear shift inhibiting means for inhibiting the shift control to change the gear ratio of said transmission, when the vehicle having said hybrid drive unit is run by a power of said assist prime mover.
-
-
6. A control system for a hybrid drive unit in which an assist prime mover is connected through a transmission mechanism to an output member, to which a torque outputted by a main prime mover is transmitted, comprising:
-
gear shift control means for switching a shift control condition of said transmission in accordance with an action state of said main prime mover, wherein said main prime mover comprises a torque distributing mechanism composed of a planetary gear mechanism for establishing a differential action with three rotary elements from first to third, the internal combustion engine connected to the first rotary element, and a motor generator connected to the second rotary element; wherein said output member is connected to the third rotary element; and wherein said internal combustion engine is rotated and started by the torque outputted by said motor generator. - View Dependent Claims (7, 8, 9)
-
-
10. A control method for a hybrid drive unit in which an assist prime mover is connected through a transmission mechanism to an output member, to which a torque outputted by a main prime mover is transmitted, comprising:
-
a gear shift control step for switching the shift control condition of said transmission in accordance with an action state of said main prime mover; and wherein the shift control condition of said transmission is switched in accordance with the situation of the control to startup said main prime mover, at said gear shift control step.
-
-
11. A control method for a hybrid drive unit in which an assist prime mover is connected through a transmission mechanism to an output member, to which a torque outputted by a main prime mover is transmitted, comprising:
-
a gear shift control step for switching the shift control condition of said transmission in accordance with an action state of said main prime mover, wherein said transmission is brought into the state just before a gear ratio changes, during said internal combustion engine included in said main prime mover is being started by the external force, and the gear ratio of said transmission is changed after the startup of said internal combustion engine is completed, at said gear shift control step. - View Dependent Claims (12)
-
-
13. A control method for a hybrid drive unit in which an assist prime mover is connected through a transmission mechanism to an output member, to which a torque outputted by a main prime mover is transmitted, comprising:
-
a gear shift control step for switching the shift control condition of said transmission in accordance with an action state of said main prime mover, wherein the shift control to change the gear ratio of said transmission is inhibited when said assist prime mover outputs the torque in connection with the startup of said main prime mover, at said gear shift control step.
-
-
14. A control method for a hybrid drive unit in which an assist prime mover is connected through a transmission mechanism to an output member, to which a torque outputted by a main prime mover is transmitted, comprising:
-
a gear shift control step for switching the shift control condition of said transmission in accordance with an action state of said main prime mover, wherein the shift control to change the gear ratio of said transmission is inhibited in case the vehicle having said hybrid drive unit is run by the power of said assist prime mover.
-
-
15. A control method for a hybrid drive unit in which an assist prime mover is connected through a transmission mechanism to an output member, to which a torque outputted by a main prime mover is transmitted, comprising:
-
a gear shift control step for switching the shift control condition of said transmission in accordance with an action state of said main prime mover, wherein said main prime mover comprises a torque distributing mechanism composed of the planetary gear mechanism for establishing the differential action with three rotary elements from first to third;
the internal combustion engine connected to the first rotary element; and
a motor generator connected to the second rotary element;wherein said output member is connected to the third rotary element; wherein the output of said assist prime mover is controlled to reduce the torque transmitted from said torque distributing mechanism to said output member, when said internal combustion engine is rotated and started by said motor generator; and wherein the shift control to change the gear ratio of said transmission is inhibited in case the output of said assist prime mover is controlled. - View Dependent Claims (16, 17)
-
Specification