CONTROL SYSTEM FOR EQUIPMENT ON A VEHICLE WITH A HYBRID-ELECTRIC POWERTRAIN
A power take off system for a hybrid-electric vehicle comprises an internal combustion engine, a hybrid-electric motor and generator, a power take off mechanism, a control module, and an engaging mechanism. The motor and generator couples to the internal combustion engine. The power take off mechanism couples to the internal combustion engine and the motor and generator. The power take off mechanism receives torque from at least one of the engine and the motor and generator. The control module is disposed in electrical communication with a system controller. The control module generates output signals for controlling the engine. The engaging mechanism is disposed in electrical communication with the system controller. The engaging mechanism has a first mode and a second mode. The power take off mechanism is decoupled from the engine and the motor and generator in response to an output signal generated by the system controller.
1 . A vehicle equipped for power take off operation using direct application of power from a hybrid electric powertrain comprising:
a controller area network and body computer connected to receive a plurality of chassis input signals;
a data link based remote power module installed on the vehicle for generating body demand signals for initiating operation of the vehicle hybrid electric powertrain for a power take off operation; and
an execution module stored on a memory of the a body computer for execution by the body computer responsive to selected chassis input signals for generating control signals for the hybrid electric powertrain for the power take off operation.
2 . The vehicle equipped for power take off operation using direct application of power from a hybrid electric powertrain of claim 1 , wherein the hybrid electric powertrain comprises an internal combustion engine and an electric motor and generator, and wherein at least one of the internal combustion engine and the electric motor and generator supplies torque for the power take off operation.
3 . The vehicle equipped for power take off operation using direct application of power from a hybrid electric powertrain of claim 2 , wherein the vehicle is a parallel type hybrid electric powertrain having the internal combustion engine connected to the electric motor and generator to allow operation of the electric motor and generator as a generator concurrently with operation of the power take off operation directly from the internal combustion engine.
4 . The vehicle equipped for power take off operation using direct application of power from a hybrid electric powertrain of claim 3 , wherein the programming gives priority to the plurality of chassis input signals over the body demand signals.
5 . The vehicle equipped for power take off operation using direct application of power from a hybrid electric powertrain of claim 4 , wherein sources for the plurality of chassis input signals are selected from existing controls of the vehicle.
6 . The vehicle equipped for power take off operation using direct application of power from a hybrid electric powertrain of claim 4 , further comprising a dedicated switch providing the plurality of chassis input signals.
7 . A vehicle equipped for power take off operation using direct application of power from a hybrid electric powertrain, comprising:
means responsive to a plurality of chassis input signals for generating a chassis demand signal for initiating operation of the hybrid electric powertrain to support power take off operation; and
means responsive to operator inputs and installed on the vehicle for generating body demand signals for initiating operation of the hybrid electric powertrain to support power take off operation.
8 . The vehicle equipped for power take off operation using direct application of power from a hybrid electric powertrain as set forth in claim 7 , wherein the hybrid electric powertrain comprises an internal combustion engine and an electric motor and generator, and wherein at least one of the internal combustion engine and the electric motor and generator supplies torque for the power take off operation.
9 . The vehicle equipped for power take off operation using direct application of power from a hybrid electric powertrain as set forth in claim 8 , wherein the vehicle is a parallel type hybrid electric powertrain having the internal combustion engine connected to the electric motor and generator to allow operation of the electric motor and generator as a generator concurrently with operation of the power take off operation directly from the internal combustion engine.
10 . The vehicle equipped for power take off operation using direct application of power from a hybrid electric powertrain as set forth in claim 9 , wherein the means responsive to operator inputs comprises programming for execution by a body computer.
11 . The vehicle equipped for power take off operation using direct application of power from a hybrid electric powertrain as set forth in claim 10 , wherein the programming gives priority to the plurality of chassis input signals over the body demand signals.
12 . The vehicle equipped for power take off operation using direct application of power from a hybrid electric powertrain as set forth in claim 11 , wherein sources for the plurality of chassis input signals are selected from existing controls of the vehicle.
13 . A vehicle comprising:
an internal combustion engine and an electric motor and generator connectable using an autoclutch to allow parallel operation for power take off operation;
a body computer connected to receive a plurality of chassis inputs and responsive to the plurality of chassis inputs operational to process programming using values for the plurality of chassis inputs to generate control signals;
a data link based module installed on the vehicle through which inputs can be entered by an operator to initiate operation of the power take off operation using either the internal combustion engine or the electric motor and generator; and
an execution module stored on memory in the body computer for execution on the body computer for overriding inputs to the data link based module with the plurality of chassis inputs for initiating operation of at least one of the internal combustion engine and the electric motor and generator for power take off operation.
14 . The vehicle of claim 13 , wherein the vehicle is a parallel type hybrid electric powertrain having the internal combustion engine connected to the electric motor and generator to allow operation of the electric motor and generator as a generator concurrently with operation of the power take off operation directly from the internal combustion engine.
15 . The vehicle of claim 13 further comprising a dedicated switch providing the plurality of chassis input signals.
16 . The vehicle of claim 13 , wherein the plurality of chassis inputs are generated from existing controls of the vehicle.
17 . The vehicle of claim 16 , wherein the plurality of chassis inputs are generated from headlamp control.
18 . The vehicle of claim 13 further comprising a dedicated switch providing the plurality of chassis inputs.
19 . The vehicle of claim 13 , wherein the internal combustion engine is a diesel engine.
20 . The vehicle of claim 13 , wherein the power take off operation comprises an aerial lift.