Back to results
US 7,377,876 B2Granted
Split serial-parallel hybrid dual-power drive system
OwnerTai-Her Yanginventor
Life of this patent
Estimating the term…
Abstract
A split serial-parallel hybrid dual-power drive system, comprised of two or more than two separation drive systems allowing independent operation to respectively drive the load, or all loads driven individually are incorporated in a common frame to drive land, surface, underwater transportation means or aircraft, industrial machines and equipment or any other load drive by rotational kinetic energy.
Claims32
A split series-parallel hybrid dual-power drive system operable alternatively as a series power drive system or a parallel power drive system, comprising:
- a first drive system for driving a first load, the first drive system including an engine and a first dynamo-electric unit, the engine having a rotary part coupled to the first dynamo-electric unit directly or through a first transmission unit and coupled to the first load directly or through a second transmission unit;
- a second drive system for driving a second load;
- the second drive system including a second dynamo-electric unit, the second load being couple to the second dynamo-electric unit directly or through the transmission unit;
- and
- a first clutch provided directly or through the transmission unit between and coupled to the output of rotary part of engine and the second drive system;
- wherein when the system operates as the series power drive system, the first clutch is disengaged so as to prevent a rotational kinetic energy from the engine from being transmitted to the second drive system, a portion of a rotational kinetic energy from the engine drives the first load through a transmission unit, another portion of the rotational kinetic energy from the engine drives the first dynamo-electric unit to operate as a generator, and power from the first dynamo-electric unit drives the second dynamo-electric unit through a control unit to function as a motor for driving the second load;
- and
- wherein when the system operates as the parallel power drive system, the first clutch is engaged so as to allow the rotational kinetic energy from the engine to be transmitted to the second drive system, a portion of the rotational kinetic energy from the engine drives the first load, and another portion of the rotational kinetic energy from the engine directly drives the second load.
5 more elements
A split series-parallel hybrid dual-power drive system operable alternatively as a series power drive system or a parallel power drive system comprising:
- a first drive system for driving a first load, the first drive system including an engine and a first dynamo-electric unit, the engine having a rotary part coupled to the first dynamo-electric unit directly or through a first transmission unit;
- a second drive system for driving a second load;
- the second drive system including a second dynamo-electric unit, the second load being couple to the second dynamo-electric unit directly or through a second transmission unit;
- a first clutch provided between and coupled to the engine and the second drive system;
- a second clutch provided between and coupled to the first dynamo-electric unit and the first load;
- a rechargeable device coupled to at least one of the first and second dynamo-electric units, the rechargeable device being rechargeable, when driven by the engine and at least one of a first and a second load is a light load that is less than a normal load, by power from either the first or the second dynamo-electric unit, the rechargeable device driving at least one of the first and second dynamo-electric units to function as a motor when driven by the engine and at least one of the first and second loads is a heavy load that is more than the normal load;
- and
- a drive control unit for controlling the first drive system, the second drive system, the first and second clutches, and the rechargeable device;
- wherein when the system operates as the series power drive system, the first clutch is disengaged so as to prevent a rotational kinetic energy from the engine from being transmitted to the second drive system, the second clutch is also disengaged, so that the engine runs at lower fuel consumption with higher fuel saving so as to reach brake specific fuel consumption, and meanwhile an electric power from the first dynamo-electric unit drives the second dynamo-electric unit via the control unit to drive the second load;
- and
- wherein when the system operates as the parallel power drive system, the first clutch is engaged so as to allow the rotational kinetic energy from the engine to be transmitted to the second drive system.
8 more elements
A split series-parallel hybrid dual-power drive system operable alternatively as a series power drive system or a parallel power drive system comprising:
- a first drive system for driving a first load, the first drive system including an engine and a first dynamo-electric unit, the engine having a rotary part coupled to the first dynamo-electric unit directly or through a first transmission unit;
- a second drive system for driving a second load;
- the second drive system including a second dynamo-electric unit, the second load being couple to the second dynamo-electric unit directly or through a second transmission unit;
- a first clutch provided between and coupled to the engine and the second drive system;
- a second clutch provided between and coupled to the first dynamo-electric unit and the first load;
- a rechargeable device coupled to at least one of the first and second dynamo-electric units, the rechargeable device being rechargeable, when driven by the engine and at least one of a first and a second load is a light load that is less than a normal load, by power from either the first or the second dynamo-electric unit, the rechargeable device driving at least one of the first and second dynamo-electric units to function as a motor when driven by the engine and at least one of the first and second loads is a heavy load that is more than the normal load;
- and
- a drive control unit for controlling the first drive system, the second drive system, the first and second clutches, and the rechargeable device;
- wherein when the system operates as the series power drive system, the first clutch is disengaged so as to prevent a rotational kinetic energy from the engine from being transmitted to the second drive system, the second clutch is also disengaged, so that the engine runs at lower fuel consumption with higher fuel saving so as to reach brake specific fuel consumption, and meanwhile an electric power from the first dynamo-electric unit drives the second dynamo-electric unit via the control unit to drive the second load;
- wherein when the system operates as the parallel power drive system, the first clutch is engaged so as to allow the rotational kinetic energy from the engine to be transmitted to the second drive system.
7 more elements
Dependencies are inferred from the claim text.