JP2008201301A - Driving system and automobile equipped with the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a motor driving state of outputting driving power from a motor in the operation stop state of an internal combustion engine without starting the internal combustion engine. <P>SOLUTION: When start operation of operating a power switch 72 is performed in the ON state of a brake switch signal from a brake switch 74, the ON output of an ignition signal and a start signal from a power supply ECU 62 is performed, and the state of an EV switch 76 in the start operation is output as an EV switch signal. When an EV switch signal is ON after an HVECU 50 confirms that a power system 30 is in a startable state by initial processing, the ON output of a motor travel mode signal is performed without starting the engine 32, that is, start operation is performed while operating the EV switch 76 to start as a motor travel mode without starting the engine 32. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a drive system and an automobile equipped with the drive system.

Conventionally, this type of drive system has been proposed that includes a power switch that changes the system to accessory-on, ignition-on (IGON), and ignition-off (IGOFF) every time a short press is performed (for example, , See Patent Document 1). In this system, when the power switch is pressed while the brake switch is on, the system main relay is turned on to start the entire system.
Japanese Patent Laying-Open No. 2005-261041

  In a drive system including an internal combustion engine that outputs driving power and an electric motor that outputs driving power independently of the internal combustion engine, an electric mode that is driven only by the power from the motor while the operation of the internal combustion engine is stopped Some have a switch for instructing. For example, in a hybrid vehicle equipped with such a drive system, one having an EV switch for motor travel can be cited. In such a drive system, at the time of start-up, the internal combustion engine is started in consideration that the internal combustion engine is not warmed up. In this case, even if the electric mode switch is operated at the time of starting, all the switch states are canceled by the initialization process executed at the time of starting, so the state of the electric mode switch is also canceled and the internal combustion engine is started.

  The drive system of the present invention and a vehicle equipped with the drive system are intended to enable starting in an electric motor driving state in which driving power is output from the electric motor while the internal combustion engine is stopped without starting the internal combustion engine. And

  The drive system of the present invention and a vehicle equipped with the drive system employ the following means in order to achieve the above-described object.

The first drive system of the present invention comprises:
A driving device having an internal combustion engine and an electric motor for outputting driving power; and
At least two of a start state in which a high voltage system power source for driving at least a part of the device of the drive device is connected and a stop state in which the connection of the high voltage system power source is released and the system is stopped A power switch for instructing to change one state,
An electric motor driving state instruction switch for instructing an electric motor driving state for outputting driving power from the electric motor in a state where the operation of the internal combustion engine is stopped;
When a predetermined start operation using the power switch is performed, a predetermined start preparation process is performed, and the motor drive state instruction when the predetermined start operation is performed on the drive device after the start preparation process is performed A control device for setting the system in the activated state as a drivable state based on a switch state;
It is a summary to provide.

  In the first drive system of the present invention, when a predetermined start operation using the power switch is performed, a predetermined start preparation process is executed, and then the motor is driven when the drive device is subjected to the predetermined start operation. Since the system is activated as a drivable state based on the state of the state instruction switch, the drive state can be based on the state of the motor drive state instruction switch when a predetermined activation operation is performed immediately after the system is activated. As a result, by turning on the motor drive state instruction switch when a predetermined start operation is performed, the system can be started in the motor drive state without starting the internal combustion engine.

  In such a first drive system of the present invention, the control device starts the internal combustion engine when the predetermined start operation using the power switch is performed and starts the internal combustion engine when the motor drive state instruction switch is off. The device may be in a driveable state, and when the electric motor drive state instruction switch is on, the drive device may be driven in the electric motor drive state without starting the internal combustion engine.

  In the first drive system of the present invention, the control device may change the state of the motor drive state instruction switch when a predetermined stop operation using the power switch is performed when the system is in the activated state. It can also be a device that cancels and enters the stopped state. In this way, it is not necessary to maintain the state of the motor drive state instruction switch.

  Furthermore, the first drive system of the present invention further comprises electric motor drive state display means for displaying an on / off state of the electric motor drive state instruction switch, and the control device has been subjected to a predetermined starting operation using the power switch. Sometimes the apparatus controls the motor drive state display means so that the on / off state of the motor drive state instruction switch is displayed based on the state of the motor drive state instruction switch after the start preparation process is executed. You can also In this way, it is possible to display whether or not the motor is in a driving state immediately after the system is started.

The second drive system of the present invention includes:
A drive device having an internal combustion engine and an electric motor for outputting driving power, a drive control device for driving and controlling the drive device, and a high-voltage power source for driving at least some of the devices of the drive device A power switch for instructing to change at least two states of a connected start state and a stop state in which the connection of the high-voltage power source is released and the system is stopped; and the electric motor in a state in which the operation of the internal combustion engine is stopped A drive system comprising: an electric motor drive state instruction switch for instructing an electric motor drive state for outputting driving power from a power source; and a power supply control device for controlling a power supply state to the system based on an operation of the power switch. ,
The power control device sets the system in the activated state when a predetermined activation operation using the power switch is performed, and indicates a state of the electric motor drive state instruction switch when the predetermined activation operation is performed together with an activation start signal. It is a device that outputs to the drive control device,
The drive control device executes a predetermined start preparation process when the start start signal is input from the power supply control device, and drives the drive device based on the state of the motor drive state instruction switch after the start preparation process is executed. It is a device that makes it possible,
This is the gist.

  In the second drive system of the present invention, when a predetermined start operation using the power switch is performed, the power supply control device drives the motor when the system is in a start state and the predetermined start operation is performed together with the start start signal. The state of the state instruction switch is output to the drive control device. The drive control device that has input the activation start signal and the state of the electric motor drive state instruction switch executes a predetermined activation preparation process, and then sets the drive device in a drivable state based on the state of the electric motor drive state instruction switch. Thereby, it can be set as the drive state based on the state of the electric motor drive state instruction | indication switch when predetermined | prescribed starting operation is made immediately after system starting. As a result, by turning on the motor drive state instruction switch when a predetermined start operation is performed, the system can be started in the motor drive state without starting the internal combustion engine.

  In such a second drive system of the present invention, the drive control device starts the internal combustion engine when the start signal is input from the power supply control device and starts the internal combustion engine when the motor drive state instruction switch is off. The device may be in a driveable state, and when the electric motor drive state instruction switch is on, the drive device may be driven in the electric motor drive state without starting the internal combustion engine.

  In the second drive system of the present invention, the drive control device may be configured such that when a predetermined stop operation using the power switch is performed when the drive device is in a drivable state, the motor drive state instruction switch It is also possible for the device to cancel the state and place the drive device in a drive stop state. In this way, it is not necessary to maintain the state of the motor drive state instruction switch.

  Furthermore, in the second drive system of the present invention, there is provided an electric motor drive state display means for displaying an on / off state of the electric motor drive state instruction switch, and the drive control device receives the start-up signal from the power supply control device. Sometimes the apparatus controls the motor drive state display means so that the on / off state of the motor drive state instruction switch is displayed based on the state of the motor drive state instruction switch after the start preparation process is executed. You can also In this way, it is possible to display whether or not the motor is in a driving state immediately after the system is started.

  In the first or second drive system of the present invention, the predetermined activation operation may be an operation in which an operation for suppressing driving of the drive device and an operation of the power switch are performed simultaneously. it can. In this way, the drive system can be started by more accurately recognizing the operator's intention to start the drive system. Here, the “operation for suppressing the drive of the drive device” is, for example, when the drive device is a device that outputs power to the drive shaft, to apply a braking force to the drive shaft to suppress the rotational drive to the drive shaft. It means an operation performed to suppress the drive of the drive device, such as an operation performed in the above. By setting such an operation as an activation operation, even when an unexpected drive of the drive device occurs when the drive system is activated, the unexpected drive can be suppressed.

  The automobile of the present invention includes any one of the above-described first or second drive systems of the present invention, that is, basically a drive device having an internal combustion engine that outputs driving power and an electric motor, and at least At least two states of a start state in which a high voltage system power source for driving a part of the device of the drive device is connected and a stop state in which the connection of the high voltage system power source is released and the system is stopped A power switch for instructing a change of state, an electric motor drive state instruction switch for instructing an electric motor drive state for outputting driving power from the electric motor in a state where the operation of the internal combustion engine is stopped, and a predetermined activation using the power switch When the operation is performed, a predetermined start preparation process is executed, and the electric motor drive when the predetermined start operation is performed on the drive device after the start preparation process is executed. A first drive system according to the present invention, and a drive device having an internal combustion engine that outputs driving power and an electric motor, and a control device that brings the system into the start-up state as a drivable state based on the state of the state indicating switch A startup state in which a drive control device that drives and controls the drive device, and a high-voltage power source for driving at least a part of the device of the drive device is connected, and a connection between the high-voltage power source and A power switch for instructing to change at least two states, a stopped state in which the system is stopped after being released, and an electric motor drive for instructing an electric motor driving state for outputting driving power from the electric motor in a state in which the operation of the internal combustion engine is stopped A drive system comprising: a state instruction switch; and a power supply control device that controls a power supply state to the system based on an operation of the power switch. Thus, the power control device sets the system to the start state when a predetermined start operation using the power switch is performed, and sets the motor drive state instruction switch when the predetermined start operation is performed together with a start start signal. A device that outputs a state to the drive control device, wherein the drive control device executes a predetermined start preparation process when the start start signal is input from the power supply control device and the drive after the start preparation process is executed. The gist of the present invention is to mount the second drive system of the present invention, which is a device in which the device can be driven based on the state of the electric motor drive state instruction switch, and run using the drive device as a power source.

  Since the vehicle according to the present invention is equipped with the first or second drive system of the present invention according to any one of the above-described aspects, the effects exhibited by the first or second drive system of the present invention, for example, immediately after system startup. The effect of being able to achieve a drive state based on the state of the motor drive state instruction switch when a predetermined start operation is performed from the internal combustion engine, or by turning on the motor drive state instruction switch when a predetermined start operation is performed It is possible to achieve the same effect as the effect that the system can be started in the electric motor drive state without starting the engine.

  Next, the best mode for carrying out the present invention will be described using examples.

  FIG. 1 is a configuration diagram showing an outline of a configuration of a hybrid vehicle 20 that functions as a drive system according to an embodiment of the present invention. The hybrid vehicle 20 of the embodiment functions as a power control system 30 that outputs power to a drive shaft 22 connected to drive wheels 26a and 26b via a differential gear 24, and a vehicle start control device including the power system 30. And a power supply electronic control unit (hereinafter referred to as a power supply ECU) 62.

  The power system 30 includes an engine 32, an engine electronic control unit (hereinafter referred to as an engine ECU) 36 that controls the operation of the engine 32, a carrier connected to the crankshaft 34 of the engine 32, and a ring gear connected to the drive shaft 22. Are connected to each other, a power generating motor 40 connected to the sun gear of the planetary gear mechanism 38, a power generating motor 41 for inputting / outputting power to / from the drive shaft 22, and driving of the motors 40, 41. Inverters 42 and 43 as circuits, a battery 44 as a power source connected to the inverters 42 and 43 and other auxiliary machines 48 included in the power system 30 via a system main relay 46, and the entire power system 30 are controlled. Electronic control unit for hybrid (hereinafter referred to as HVECU) Say.) Equipped with a 50 and.

  The HVECU 50 is configured as a microcomputer centering on a CPU (not shown), and includes a ROM that stores a processing program, a RAM that temporarily stores data, an input / output port, a communication port, and the like in addition to the CPU. The HVECU 50 includes a rotation position from a rotation position detection sensor (not shown) that detects the rotation position of the rotor of the motors 40 and 41, and a current sensor (not shown) attached to the power line from the inverters 42 and 43 to the motors 41 and 42. Shift for detecting phase current, output voltage and output current from a voltage sensor (not shown) installed near the output terminal of the battery 44, current from the temperature sensor, battery temperature from the temperature sensor attached to the battery 44, and shift lever operating position The shift position from the position sensor, the accelerator opening from the accelerator pedal position sensor that detects the amount of depression of the accelerator pedal, the brake pedal position from the brake pedal position sensor that detects the amount of depression of the brake pedal, the vehicle speed from the vehicle speed sensor, etc. Data from various sensors for detecting the state of the dynamic system is input through the input port. The HVECU 50 outputs a switching signal to the inverters 42 and 43, a drive signal to the auxiliary machine 48, and the like. The HVECU 50 is connected to the engine ECU 36 via a communication port, and receives detection signals from various sensors attached to the engine 32 from the engine ECU 36 and calculation results calculated based on the detection signals as necessary. In addition, a control signal is output to the engine ECU 36 as a command for controlling the operation of the engine 32. The HVECU 50 is connected to the power supply ECU 62 via a communication port as shown in FIG. 2, and an ignition signal (IG signal), a start signal (ST signal), an EV switch signal (EV signal), etc. are transmitted from the power supply ECU 62. In addition to the input, the power supply ECU 62 outputs a ready signal (RDY signal) indicating a startup state of the power system 30 and a motor travel mode signal (EVM signal).

  The HVECU 50 calculates a required torque to be output to the drive shaft 22 based on the accelerator opening corresponding to the amount of depression of the accelerator pedal by the driver and the vehicle speed, and the required power corresponding to the required torque is output to the drive shaft 22. In addition, the operating point of the engine 32 and the torque command of the motors 40 and 41 are calculated so that the remaining capacity (SOC) of the battery 44 is within a predetermined range and the engine 32 is operated efficiently. The operation point of the engine 32 is output to the engine ECU 36 to cause the engine ECU 36 to control the operation of the engine 32. With respect to the torque commands of the motors 40 and 41, the torque corresponding to the torque command is output from the motors 40 and 41. A switching signal is output to inverters 42 and 43 to 40 and 41 for controlling driving. Since detailed control of the power system 30 does not form the core of the present invention, further detailed description is omitted.

  The power supply ECU 62 is configured as a microcomputer centering on a CPU (not shown), and includes a ROM that stores a processing program, a RAM that temporarily stores data, an input / output port, a communication port, and the like in addition to the CPU. The power supply ECU 62 includes a push signal from a power switch 72 attached to the front panel of the driver's seat, a brake switch signal from a brake switch 74 that detects depression of a brake pedal (not shown), and a motor attached to the front panel of the driver's seat. An EV switch signal from the EV switch 76 instructing traveling is input via the input port. Further, from the power supply ECU 62, a drive signal to the system main relay 46, a lighting signal to the indicator 73 built in the power switch 72, a lighting signal to the indicator 77 built in the EV switch 76, and the like are output via the output port. It is output. As described above, the power supply ECU 62 is connected to the HVECU 50 of the power system 30 via the communication port. Based on the push signal from the power switch 72, the brake switch signal from the brake switch 74, etc. It controls the turning on and off of the power, the turning on and off of the power to the power system 30 that is a high-voltage system (ON / OFF of the system main relay 46) and the activation of the power system 30.

  Whenever the power switch 72 inputs a short push signal in which the power switch 72 is pressed for less than a predetermined time (for example, less than 3 seconds), an accessory ON (ACCON) that connects a battery as a low-voltage power source to the system is input. ), Ignition on (IGON) in which a battery 44 as a power source (high voltage system) of the power system 30 is connected by a system main relay 46, connection of a battery 44 as a low voltage system power source or a high voltage system power source Is controlled to repeat each of the ignition-off (IGOFF) states in which the system is stopped and the system is stopped. Among these, the ignition on and the ignition off are output as an ignition signal (IG signal) to the HVECU 50 of the power system 30 and a drive signal as an on / off signal is output to the system main relay 46. That is, when the power switch 72 is pressed while the accessory is on, the power supply ECU 62 outputs an ON signal as an IG signal to the HVECU 50 and outputs an ON signal to the system main relay 46 to turn on the power to the high voltage system and turn on the ignition. When the power switch 72 is pressed in this state, an IG signal is output to the HVECU 50 and an off signal is output to the system main relay 46 to shut off the power supply from the high voltage system. The power supply ECU 62 lights an indicator 73 incorporated in the power switch 72 in order to notify the driver of each of these states. In the embodiment, the indicator 73 is turned off when the entire vehicle is down (IGOFF), turned off when the accessory is turned on (ACCON), lit green when the ignition is turned on (IGON), turned off when the power system 30 is activated, The system is abnormally blinking orange.

  Further, when the brake switch signal from the brake switch 74 is on, that is, when the driver depresses the brake pedal and the power switch 72 is pressed to input a push signal, the power supply ECU 62 turns on the system main relay 46. When not turned on, an on signal is output to the system main relay 46 and an ignition signal (IG signal) and a start signal (ST signal) are turned on to the HVECU 50 to start the power system 30. The HVECU 50 receiving the ON output of the ST signal confirms that the power system 30 is in a startable state, and then the EV switch 50 from the EV switch 76 when the driver presses the power switch 72 with the brake pedal depressed. As a drivable state based on the EV switch signal, a ready signal (RDY signal) indicating that the power supply ECU 62 is in an activated state is turned on and a motor travel mode signal (whether or not the motor travel mode is determined based on the drivable state) EVM signal). Based on the motor travel mode signal (EVM signal), the power supply ECU 62 lights the indicator 77 built in the EV switch 76 when the motor travel mode is set, and when the motor travel mode is not set, the EV switch 76. The indicator 77 built in is turned off. The HVECU 50 confirms that the power system 30 can be stopped when the ignition signal (IG signal) is output off from the power supply ECU 62 when the ready signal (RDY signal) is in the activated state. After that, a signal input / output, for example, an EV signal or a motor travel mode signal (EVM signal) is canceled and a ready signal (RDY signal) is output off.

  Next, the operation of the hybrid vehicle 20 of the embodiment configured as described above, particularly the operation at the time of starting the system in which the power switch 72 is operated when the brake switch signal from the brake switch 74 is on will be described. When the power switch 72 is operated when the brake switch signal from the brake switch 74 is on, the power supply ECU 62 outputs an on signal to the system main relay 46 and an ignition signal (IG) to the HVECU 50 as described above. Signal) and a start signal (ST signal) are turned on, and the state of the EV switch 76 at the time of such starting operation is outputted as an EV switch signal. In other words, the EV switch signal is turned on when the EV switch 76 is pressed during the starting operation, and the EV switch signal is turned off when the EV switch 76 is not pressed during the starting operation. .

  The HVECU 50 executes the startup process illustrated in FIG. 3 for the operation of the power supply ECU 62 by such a startup operation. When the startup process is executed, the HVECU 50 first executes an initial process for confirming whether or not the power system 30 is in a startable state (steps S100 and S110), so that the power system 30 can be started up. When it cannot be confirmed, the start-up process is terminated without outputting the ready signal (RDY signal) on. When it is confirmed that the power system 30 is in a startable state, the ready signal (RDY signal) is turned on (step S120), the EV switch signal (EV signal) from the power supply ECU 62 is determined (step S130), and EV. When the switch signal (EV signal) is off, the motor travel mode signal (EVM signal) is output off (step S140), the engine 32 is started (step S150), and the starting process is terminated. The reason for starting the engine 32 at the time of startup is to warm up the engine 32 to some extent because the warm-up of the engine 32 is not normally finished. On the other hand, when the EV switch signal (EV signal) is on, the motor travel mode signal (EVM signal) is turned on (step S160), and the startup process is terminated without starting the engine 32. As described above, when the EV switch 76 is pressed during the starting operation, the motor travel mode signal (EVM signal) is turned on (step S160), and the starting process is terminated without starting the engine 32. Can be activated.

  According to the hybrid vehicle 20 of the embodiment described above, when the start operation for operating the power switch 72 is performed when the brake switch signal from the brake switch 74 is on, the ignition signal (IG signal) is sent from the power supply ECU 62. ) And a start signal (ST signal) are turned on, and the state of the EV switch 76 at the time of start-up operation is output as an EV switch signal (EV signal). Accordingly, the HVECU 50 can start the power system 30 through initial processing. When the EV switch signal (EV signal) is turned on after confirming that the vehicle is in a stable state, the motor drive mode signal (EVM signal) is output on without starting the engine 32. Can be operated simultaneously without starting the engine 32. It is possible to start Temu. In addition, when the ignition signal (IG signal) is output off from the power supply ECU 62 while the ready signal (RDY signal) is in an on-output state, it is confirmed that the power system 30 can be stopped. Since signals that are input and output later, such as EV signals and motor travel mode signals (EVM signals), are canceled and the ready signal (RDY signal) is output off, these input and output signals are canceled for initial processing. There is no need to perform processing. Of course, since the engine 32 is started when the EV switch 76 is not operated during the starting operation, the engine 32 can be quickly warmed up.

  In the hybrid vehicle 20 of the embodiment, the power switch 72 is operated when the brake switch signal from the brake switch 74 is on as a starting operation. However, the power switch 72 is operated regardless of the brake switch signal from the brake switch 74. It may be based on the operation of the switch 72 and other operations.

  Although the hybrid vehicle 20 of the embodiment includes the HVECU 50 as a control device in the power system 30 and the power supply ECU 62 as a start control device, a single electronic control unit is used as the control device and the start control device in the power system 30. It is good also as what is equipped with, ie, the single electronic control unit which has the function of HVECU50 of an Example, and the function of power supply ECU62.

  In the embodiment, the power system 30 is mainly composed of the engine 32, the planetary gear mechanism 38, the motors 40 and 41, the inverters 42 and 43, the battery 44, the system main relay 46, and the HVECU 50. You may comprise as any hybrid system other than a structure.

  In the embodiment, the power system 30 and the power supply ECU 62 are mounted on a vehicle. However, the power system 30 and the power supply ECU 62 may be mounted on a moving body such as a vehicle other than an automobile, a ship, and an aircraft, or equipment other than a moving body such as a construction machine It may be incorporated as a drive source.

  Here, the correspondence between the main elements of the embodiment and the main elements of the invention described in the column of means for solving the problems will be described. As a correspondence relationship with respect to the first drive system of the present invention, in the embodiment, the engine 32 corresponds to the “internal combustion engine”, the motor M41 corresponds to the “electric motor”, and the configuration excluding the HVECU 50 from the power system 30 is “drive”. The power switch 72 corresponds to the “power switch”, the EV switch 76 corresponds to the “motor drive state instruction switch”, and the power switch when the brake switch signal from the brake switch 74 is in the ON state. When a start operation for operating 72 is performed, an ignition signal (IG signal) and a start signal (ST signal) are turned on, and the state of the EV switch 76 during the start operation is output as an EV switch signal (EV signal). A power supply ECU 62 and a power system 3 through initial processing in accordance with a signal from the power supply ECU 62 When the EV switch signal (EV signal) is turned on after confirming that the engine is in a startable state, the motor drive mode signal (EVM signal) is turned on without starting the engine 32 and corresponds to a “control device”. . An indicator 77 built in the EV switch 76 corresponds to “motor drive state display means”. Here, the “internal combustion engine” is not limited to an internal combustion engine that outputs power using a hydrocarbon fuel such as gasoline or light oil, and may be any type of internal combustion engine such as a hydrogen engine. The “motor” is not limited to the motor 41 configured as a synchronous generator motor, and may be any type of motor as long as it can input and output power to the drive shaft, such as an induction motor. . As the “power switch”, an accessory-on (ACCON) for connecting a battery as a low-voltage power source to the system and a battery 44 as a power source (high-voltage system) for the power system 30 are connected by a system main relay 46. To switch each time the ignition-on (IGOFF), the ignition-off (IGOFF) state in which the system is stopped by releasing the connection of the battery 44 as a low-voltage power source or a high-voltage power source The power switch 72 is not limited to this, but the startup state in which the high voltage power source for driving at least a part of the device of the driving device is connected and the connection of the high voltage power source are released. Any system can be used as long as it instructs to change at least two states, that is, the stopped state in which the system is stopped. There. The “motor drive state instruction switch” is not limited to the EV switch 76 that instructs motor running, but instructs an electric motor drive state in which driving power is output from the motor while the internal combustion engine is stopped. Any object can be used. The “control device” turns on the ignition signal (IG signal) and the start signal (ST signal) when a start operation is performed to operate the power switch 72 when the brake switch signal from the brake switch 74 is on. The power supply ECU 62 that outputs and outputs the state of the EV switch 76 at the time of the start operation as an EV switch signal (EV signal), and the power system 30 can be started by initial processing in accordance with the signal from the power supply ECU 62. When the EV switch signal (EV signal) is turned on after confirmation of the above, the power supply ECU 62 is not limited to the combination with the HVECU 50 that outputs the motor running mode signal (EVM signal) on without starting the engine 32. And a single electronic control unit with the functions of HVECU 50 When a predetermined start operation using a power switch is performed, for example, when a predetermined start operation is performed, the motor is driven when a predetermined start operation is performed after the start preparation process is performed. Any system can be used as long as the system is activated as a drivable state based on the state of the state instruction switch. The “motor drive state display means” is not limited to the indicator 77 built in the EV switch 76, and the on / off state of the motor drive state instruction switch such as a display device not built in the EV switch 76 is used. Anything can be used as long as it is displayed. As the correspondence relationship with the second drive system of the present invention, in the embodiment, the engine 32 corresponds to the “internal combustion engine”, the motor 41 corresponds to the “electric motor”, and the configuration excluding the HVECU 50 from the power system 30 is “drive”. The power switch 72 corresponds to the “power switch”, the EV switch 76 corresponds to the “motor drive state instruction switch”, and the power switch when the brake switch signal from the brake switch 74 is in the ON state. When a start operation for operating 72 is performed, an ignition signal (IG signal) and a start signal (ST signal) are turned on, and the state of the EV switch 76 during the start operation is output as an EV switch signal (EV signal). The power supply ECU 62 corresponds to a “power supply control device”, and an initial process is performed in accordance with a signal from the power supply ECU 62. When the EV switch signal (EV signal) is turned on after confirming that the power system 30 is in a startable state, the HVECU 50 that outputs the motor travel mode signal (EVM signal) on without starting the engine 32 is “drive control”. It corresponds to "apparatus". An indicator 77 built in the EV switch 76 corresponds to “motor drive state display means”. Here, the “internal combustion engine” is not limited to an internal combustion engine that outputs power using a hydrocarbon fuel such as gasoline or light oil, and may be any type of internal combustion engine such as a hydrogen engine. The “motor” is not limited to the motor 41 configured as a synchronous generator motor, and may be any type of motor as long as it can input and output power to the drive shaft, such as an induction motor. . As the “power switch”, an accessory-on (ACCON) for connecting a battery as a low-voltage power source to the system and a battery 44 as a power source (high-voltage system) for the power system 30 are connected by a system main relay 46. To switch each time the ignition-on (IGOFF), the ignition-off (IGOFF) state in which the system is stopped by releasing the connection of the battery 44 as a low-voltage power source or a high-voltage power source The power switch 72 is not limited to this, but the startup state in which the high voltage power source for driving at least a part of the device of the driving device is connected and the connection of the high voltage power source are released. Any system can be used as long as it instructs to change at least two states, that is, the stopped state in which the system is stopped. There. The “motor drive state instruction switch” is not limited to the EV switch 76 that instructs motor running, but instructs an electric motor drive state in which driving power is output from the motor while the internal combustion engine is stopped. Any object can be used. As the “power supply control device”, an ignition signal (IG signal) and a start signal (ST signal) are generated when an activation operation is performed to operate the power switch 72 when the brake switch signal from the brake switch 74 is in an ON state. The power supply state to the system is controlled based on the operation of the power switch, and is not limited to the one that outputs the ON state and outputs the state of the EV switch 76 at the start operation as an EV switch signal (EV signal). In addition, when a predetermined activation operation using the power switch is performed, the system is activated, and the state of the motor drive state instruction switch when the predetermined activation operation is performed together with the activation start signal is output to the drive control device. It doesn't matter what. As the “drive control device”, the engine 32 is started when the EV switch signal (EV signal) is on after confirming that the power system 30 can be started by the initial processing in accordance with the signal from the power supply ECU 62. The motor driving mode signal (EVM signal) is not limited to the output signal, and the drive device is driven and controlled, and when a start signal is input from the power control device, a predetermined start preparation process is executed and started. Any device may be used as long as the drive device is brought into a drivable state based on the state of the motor drive state instruction switch after the preparation process is executed. The “motor drive state display means” is not limited to the indicator 77 built in the EV switch 76, and the on / off state of the motor drive state instruction switch such as a display device not built in the EV switch 76 is used. Anything can be used as long as it is displayed. The correspondence between the main elements of the embodiment and the main elements of the invention described in the column of means for solving the problem is the same as that of the embodiment described in the column of means for solving the problem. It is an example for specifically explaining the best mode for doing so, and does not limit the elements of the invention described in the column of means for solving the problem. In other words, the interpretation of the invention described in the column of means for solving the problem should be made based on the description of the column, and the examples are those of the invention described in the column of means for solving the problem. It is only a specific example.

  The best mode for carrying out the present invention has been described with reference to the embodiments. However, the present invention is not limited to these embodiments, and various modifications can be made without departing from the gist of the present invention. Of course, it can be implemented in the form.

1 is a configuration diagram showing an outline of the configuration of a hybrid vehicle 20 that functions as a drive system according to an embodiment of the present invention. It is explanatory drawing which shows the detail of the connection relation of power supply ECU62 and HVECU50. 3 is a flowchart illustrating an example of a startup process executed by an HVECU 50.

Explanation of symbols

  20 Hybrid Vehicle, 22 Drive Shaft, 24 Differential Gear, 26a, 26b Drive Wheel, 30 Power System, 32 Engine, 34 Crankshaft, 36 Engine Electronic Control Unit (Engine ECU), 38 Planetary Gear Mechanism, 40, 41 Motor, 42, 43 Inverter, 44 Battery, 46 System main relay, 48 Auxiliary machine, 50 Hybrid electronic control unit (HVECU), 62 Power supply electronic control unit (power ECU), 72 Power switch, 73 Indicator, 74 Brake switch, 76 EV switch, 77 indicator.

Claims (10)

A driving device having an internal combustion engine and an electric motor for outputting driving power; and
At least two of a start state in which a high voltage system power source for driving at least a part of the device of the drive device is connected and a stop state in which the connection of the high voltage system power source is released and the system is stopped A power switch for instructing to change one state,
An electric motor driving state instruction switch for instructing an electric motor driving state for outputting driving power from the electric motor in a state where the operation of the internal combustion engine is stopped;
When a predetermined start operation using the power switch is performed, a predetermined start preparation process is performed, and the motor drive state instruction when the predetermined start operation is performed on the drive device after the start preparation process is performed A control device for setting the system in the activated state as a drivable state based on a switch state;
A drive system comprising:   When the predetermined start operation using the power switch is performed, the control device starts the internal combustion engine when the motor drive state instruction switch is off to make the drive device ready to drive, and the motor drive state The drive system according to claim 1, wherein when the instruction switch is on, the drive device is in a driveable state according to the motor drive state without starting the internal combustion engine.   The control device is a device that cancels the state of the electric motor drive state instruction switch and makes the stop state when a predetermined stop operation using the power switch is performed when the system is in the start state. Item 3. The drive system according to Item 1 or 2. The drive system according to any one of claims 1 to 3,
Electric motor driving state display means for displaying an on / off state of the electric motor driving state instruction switch;
When a predetermined start operation using the power switch is performed, the control device displays an on / off state of the motor drive state instruction switch based on a state of the motor drive state instruction switch after executing the start preparation process An apparatus for controlling the electric motor drive state display means to be
Driving system. A drive device having an internal combustion engine and an electric motor for outputting driving power, a drive control device for driving and controlling the drive device, and a high-voltage power source for driving at least some of the devices of the drive device A power switch for instructing to change at least two states of a connected start state and a stop state in which the connection of the high-voltage power source is released and the system is stopped; and the electric motor in a state in which the operation of the internal combustion engine is stopped A drive system comprising: an electric motor drive state instruction switch for instructing an electric motor drive state for outputting driving power from a power source; and a power supply control device for controlling a power supply state to the system based on an operation of the power switch. ,
The power control device sets the system in the activated state when a predetermined activation operation using the power switch is performed, and indicates a state of the electric motor drive state instruction switch when the predetermined activation operation is performed together with an activation start signal. It is a device that outputs to the drive control device,
The drive control device executes a predetermined start preparation process when the start start signal is input from the power supply control device, and drives the drive device based on the state of the motor drive state instruction switch after the start preparation process is executed. It is a device that makes it possible,
Driving system.   When the start signal is input from the power supply control device, the drive control device starts the internal combustion engine when the motor drive state indication switch is off to drive the drive device, and the motor drive state 6. The drive system according to claim 5, wherein when the instruction switch is on, the drive device is in a driveable state according to the motor drive state without starting the internal combustion engine.   The drive control device cancels the state of the motor drive state instruction switch and stops driving the drive device when a predetermined stop operation using the power switch is performed when the drive device is in a driveable state. The drive system according to claim 5 or 6, wherein the drive system is a device to be put into a state. The drive system according to any one of claims 5 to 7,
Electric motor driving state display means for displaying an on / off state of the electric motor driving state instruction switch;
When the drive control device receives the start-up signal from the power supply control device, the on-off state of the motor drive state instruction switch is displayed based on the state of the motor drive state instruction switch after executing the start-up preparation process. An apparatus for controlling the electric motor drive state display means to be
Driving system.   The drive system according to any one of claims 1 to 8, wherein the predetermined activation operation is an operation in which an operation to suppress driving of the drive device and an operation of the power switch are performed simultaneously.   An automobile equipped with the drive system according to any one of claims 1 to 9 and running using the drive device as a power source.

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