JP5310203B2 - Hybrid vehicle and notification control method thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To suppress a driver who attempts to start from feeling a sense of incompatibility. <P>SOLUTION: When an engine is operated autonomously, in such a state that a shift position SP is set to N position at stop (S140), and accelerator opening Acc is turned to be prescribed opening Aref or more (S160), a driver is notified of warning information, indicating that the shift operation of the driver is wrong or warning information indicating that the change of the shift position SP to a D position is requested and a warning sound (S170). Thus, it is possible for the driver to readily notice misoperation of the shift lever and to suppress the driver who tries to start from feeling any sense of incompatibility. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a hybrid vehicle and a notification control method thereof.

  Conventionally, this type of hybrid vehicle includes an engine, a first motor generator, a planetary gear in which an engine, a first motor generator, and a drive shaft connected to a front wheel are connected to a carrier, a sun gear, and a ring gear, respectively, and a drive There has been proposed one including a second motor generator connected to a shaft and a battery electrically connected to the first and second motor generators (see, for example, Patent Document 1). In addition, in an electric vehicle that is driven by the power from the motor, the shift position is changed from the forward D position to the drive stop N position while the accelerator is depressed due to an erroneous shift operation of the driver during driving. In some cases, an alarm is output by alarm sound or blinking of a lamp (for example, see Patent Document 2).

JP 2006-170128 A JP-A-8-322105

  In a hybrid vehicle configured in the same manner as described above, the driver feels uncomfortable when the driver makes a mistake in the shift operation when starting from a state where the engine is driven independently such as idle operation. There is a case. In this hybrid vehicle, when starting from a state where the engine is stopped and the engine is autonomously operated, if the shift position is not the driving position but the neutral position due to an erroneous operation of the shift, even if the accelerator is operated, the vehicle Since the number of engine revolutions does not increase as in a car that travels only with the power from the engine without starting, the driver is not likely to notice a shift operation and feels uncomfortable. Also, in this hybrid vehicle, because of the configuration, if the rotational speed of the engine that is operating independently is changed, the torque caused by the inertia acts on the drive shaft, so the shift position should be in a neutral position where torque should not be output to the drive shaft. Sometimes it is difficult to change the rotational speed of an engine that is operating independently.

  The main object of the hybrid vehicle and its notification control method of the present invention is to suppress the driver from feeling uncomfortable.

  The hybrid vehicle and its notification control method of the present invention employ the following means in order to achieve the above-mentioned main object.

The hybrid vehicle of the present invention
A planet in which three rotating elements are connected to three axes of an internal combustion engine, a generator capable of inputting / outputting power, an output shaft of the internal combustion engine, a rotating shaft of the generator, and a driving shaft connected to driving wheels. A hybrid vehicle comprising a gear mechanism, an electric motor capable of inputting / outputting power to / from the drive shaft, and an electric storage means capable of exchanging electric power with the generator and the electric motor,
Shift position detecting means for detecting a shift position based on the shift operation of the driver;
An accelerator operation amount detection means for detecting the driver's accelerator operation amount;
An informing means for informing the driver of information;
Drive control means for controlling the internal combustion engine, the generator, and the electric motor so that driving power is not output to the drive shaft when the detected shift position is a neutral position;
When the detected accelerator operation amount is equal to or greater than a predetermined operation amount when the internal combustion engine is operating autonomously with the detected shift position being in the neutral position when the vehicle is stopped, Notification control means for controlling the notification means so that the information is notified;
It is a summary to provide.

  In the hybrid vehicle of the present invention, when the driver's accelerator operation amount becomes equal to or greater than a predetermined operation amount when the internal combustion engine is operating independently while the shift position based on the driver's shift operation is in the neutral position when the vehicle is stopped. Then, the notification means is controlled so that the predetermined information regarding the error of the driver's shift operation is notified. As a result, it is possible to suppress the driver feeling uncomfortable from starting. Here, the “predetermined rotational speed” includes the rotational speed when the internal combustion engine is idling. Further, the “predetermined operation amount” includes an operation amount determined in advance by an experiment as an accelerator operation amount that can be determined that the driver is about to start from a stopped state.

  In such a hybrid vehicle of the present invention, the notification control means includes the detected accelerator operation when the detected shift position is in a neutral position and the internal combustion engine is operating autonomously and the brake is on. It may be a means for controlling the notification means so that the predetermined information is not notified regardless of whether or not the amount is equal to or greater than the predetermined operation amount. In this way, it is possible to suppress notification of unnecessary information to the driver who is not going to start.

  Further, in the hybrid vehicle of the present invention, the predetermined information is information based on at least one of an indication that the driver's shift operation is incorrect and / or a request to change the shift position to the driving position and / or voice. It can also be. In this way, it is possible to more surely prevent the driver trying to start from feeling uncomfortable.

A notification control method for a hybrid vehicle of the present invention includes:
A planet in which three rotating elements are connected to three axes of an internal combustion engine, a generator capable of inputting / outputting power, an output shaft of the internal combustion engine, a rotating shaft of the generator, and a driving shaft connected to driving wheels. A gear mechanism, an electric motor capable of inputting / outputting power to / from the drive shaft, an electric storage means capable of exchanging electric power with the generator and the electric motor, an informing means for notifying the driver of information, and a shift operation of the driver And a drive control means for controlling the internal combustion engine, the generator, and the electric motor so that traveling power is not output to the drive shaft when the shift position based on is a neutral position, and a notification control method for a hybrid vehicle equipped therewith. And
When the driver's accelerator operation amount exceeds a predetermined operation amount when the internal combustion engine is operating independently while the shift position based on the driver's shift operation is in the neutral position when the vehicle is stopped, the driver's shift operation error Controlling the notifying means so that predetermined information regarding is notified,
It is characterized by that.

  In the hybrid vehicle notification control method of the present invention, the accelerator operation amount of the driver is greater than or equal to the predetermined operation amount when the internal combustion engine is operating independently with the shift position based on the shift operation of the driver at the neutral position when the vehicle is stopped. When it becomes, the notification means is controlled so that predetermined information regarding the error of the driver's shift operation is notified. As a result, it is possible to suppress the driver feeling uncomfortable from starting. Here, the “predetermined rotational speed” includes the rotational speed when the internal combustion engine is idling. Further, the “predetermined operation amount” includes an operation amount determined in advance by an experiment as an accelerator operation amount that can be determined that the driver is about to start from a stopped state. Further, the “predetermined information” includes information such as an indication that the driver's shift operation is incorrect and / or a request to change the shift position to the driving position and / or sound.

1 is a configuration diagram showing an outline of a configuration of a hybrid vehicle 20 according to an embodiment of the present invention. It is a flowchart which shows an example of the control routine at the time of N position performed by the electronic control unit for hybrids 70 of an Example. FIG. 11 is a configuration diagram showing an outline of a configuration of a hybrid vehicle 120 according to a modification.

  Next, the form for implementing this invention is demonstrated using an Example.

  FIG. 1 is a configuration diagram showing an outline of the configuration of a hybrid vehicle 20 as an embodiment of the present invention. As shown in the figure, the hybrid vehicle 20 of the embodiment includes an engine 22, a three-shaft power distribution / integration mechanism 30 connected to a crankshaft 26 as an output shaft of the engine 22 via a damper 28, and power distribution / integration. A motor MG1 capable of generating electricity connected to the mechanism 30, a reduction gear 35 attached to a ring gear shaft 32a as a drive shaft connected to the power distribution and integration mechanism 30, a motor MG2 connected to the reduction gear 35, And a hybrid electronic control unit 70 for controlling the entire vehicle.

  The engine 22 is configured as an internal combustion engine that can output power using a hydrocarbon-based fuel such as gasoline or light oil. The exhaust from the engine 22 is attached to the exhaust system to be carbon monoxide (CO) or carbonized. It is discharged to the outside air through a purification device 23 having a catalyst that purifies harmful components of hydrogen (HC) and nitrogen oxides (NOx). The engine 22 is attached to the purification device 23 and is an engine electronic control unit (hereinafter referred to as “engine control unit”) that receives signals from various sensors that detect the operating state of the engine 22 including the catalyst temperature Tc from the temperature sensor 23a that detects the temperature of the catalyst. The engine ECU 24) receives operation control such as fuel injection control, ignition control, and intake air amount adjustment control. The engine ECU 24 is in communication with the hybrid electronic control unit 70, controls the operation of the engine 22 by a control signal from the hybrid electronic control unit 70, and, if necessary, transmits data related to the operating state of the engine 22 to the hybrid electronic control. Output to unit 70. The engine ECU 24 also calculates the rotational speed of the crankshaft 26, that is, the rotational speed Ne of the engine 22 based on a signal from a crank position sensor (not shown) attached to the crankshaft 26.

  The power distribution and integration mechanism 30 includes an external gear sun gear 31, an internal gear ring gear 32 arranged concentrically with the sun gear 31, a plurality of pinion gears 33 that mesh with the sun gear 31 and mesh with the ring gear 32, A planetary gear mechanism is provided that includes a carrier 34 that holds a plurality of pinion gears 33 so as to rotate and revolve, and that performs differential action using the sun gear 31, the ring gear 32, and the carrier 34 as rotational elements. In the power distribution and integration mechanism 30, the crankshaft 26 of the engine 22 is connected to the carrier 34, the motor MG1 is connected to the sun gear 31, and the reduction gear 35 is connected to the ring gear 32 via the ring gear shaft 32a. When functioning as a generator, power from the engine 22 input from the carrier 34 is distributed according to the gear ratio between the sun gear 31 side and the ring gear 32 side, and when the motor MG1 functions as an electric motor, the engine input from the carrier 34 The power from 22 and the power from the motor MG1 input from the sun gear 31 are integrated and output to the ring gear 32 side. The power output to the ring gear 32 is finally output from the ring gear shaft 32a to the drive wheels 63a and 63b of the vehicle via the gear mechanism 60 and the differential gear 62.

  The motor MG1 and the motor MG2 are both configured as well-known synchronous generator motors that can be driven as generators and can be driven as motors, and exchange power with the battery 50 via inverters 41 and 42. The power line 54 connecting the inverters 41 and 42 and the battery 50 is configured as a positive electrode bus and a negative electrode bus shared by the inverters 41 and 42, and the electric power generated by one of the motors MG1 and MG2 It can be consumed by a motor. Therefore, battery 50 is charged / discharged by electric power generated from one of motors MG1 and MG2 or insufficient electric power. If the balance of electric power is balanced by the motors MG1 and MG2, the battery 50 is not charged / discharged. The motors MG1 and MG2 are both driven and controlled by a motor electronic control unit (hereinafter referred to as a motor ECU) 40. The motor ECU 40 detects signals necessary for driving and controlling the motors MG1 and MG2, such as signals from rotational position detection sensors 43 and 44 that detect the rotational positions of the rotors of the motors MG1 and MG2, and current sensors (not shown). The phase current applied to the motors MG1 and MG2 to be applied is input, and a switching control signal to the inverters 41 and 42 is output from the motor ECU 40. The motor ECU 40 is in communication with the hybrid electronic control unit 70, controls the driving of the motors MG1 and MG2 by a control signal from the hybrid electronic control unit 70, and, if necessary, data on the operating state of the motors MG1 and MG2. Output to the hybrid electronic control unit 70. The motor ECU 40 also calculates the rotational speeds Nm1 and Nm2 of the motors MG1 and MG2 based on signals from the rotational position detection sensors 43 and 44.

  The battery 50 is managed by a battery electronic control unit (hereinafter referred to as a battery ECU) 52. The battery ECU 52 receives signals necessary for managing the battery 50, for example, a voltage between terminals from a voltage sensor (not shown) installed between terminals of the battery 50, and a power line 54 connected to the output terminal of the battery 50. The charging / discharging current from the attached current sensor (not shown), the battery temperature Tb from the temperature sensor 51 attached to the battery 50, and the like are input. Output to the control unit 70. Further, the battery ECU 52 calculates the remaining capacity (SOC) based on the integrated value of the charging / discharging current detected by the current sensor in order to manage the battery 50, and calculates the remaining capacity (SOC) and the battery temperature Tb. The input / output limits Win and Wout, which are the maximum allowable power that may charge / discharge the battery 50, are calculated based on the above. The input / output limits Win and Wout of the battery 50 are set to the basic values of the input / output limits Win and Wout based on the battery temperature Tb, and the output limiting correction coefficient and input based on the remaining capacity (SOC) of the battery 50 It can be set by setting a correction coefficient for restriction and multiplying the basic value of the set input / output restrictions Win and Wout by the correction coefficient.

  The hybrid electronic control unit 70 is configured as a microprocessor centered on the CPU 72, and in addition to the CPU 72, a ROM 74 for storing processing programs, a RAM 76 for temporarily storing data, an input / output port and communication not shown. And a port. The hybrid electronic control unit 70 includes an ignition signal from an ignition switch 80, a shift position SP from a shift position sensor 82 that detects the operation position of the shift lever 81, and an accelerator pedal position sensor 84 that detects the amount of depression of the accelerator pedal 83. The accelerator pedal opening Acc from the vehicle, the brake pedal position BP from the brake pedal position sensor 86 for detecting the depression amount of the brake pedal 85, the vehicle speed V from the vehicle speed sensor 88, and the like are input via the input port. From the hybrid electronic control unit 70, an output signal to the display 88 that can be attached to the front of the driver's seat in the passenger compartment 21 and can display character information and image information, and can be output to the driver by being attached to the passenger compartment 21 An output signal or the like to an amplifier 89a that drives a simple speaker 89 is output via an output port. As described above, the hybrid electronic control unit 70 is connected to the engine ECU 24, the motor ECU 40, and the battery ECU 52 via the communication port, and exchanges various control signals and data with the engine ECU 24, the motor ECU 40, and the battery ECU 52. Is doing. The shift position SP includes, for example, a drive (D) position for forward travel, a reverse (R) position for reverse travel, a parking (P) position, and a neutral (N) position.

  The hybrid vehicle 20 of the embodiment thus configured calculates the required torque to be output to the ring gear shaft 32a as the drive shaft based on the accelerator opening Acc and the vehicle speed V corresponding to the depression amount of the accelerator pedal 83 by the driver. Then, the operation of the engine 22, the motor MG1, and the motor MG2 is controlled so that the required power corresponding to the required torque is output to the ring gear shaft 32a. As operation control of the engine 22, the motor MG1, and the motor MG2, the operation of the engine 22 is controlled so that power corresponding to the required power is output from the engine 22, and all of the power output from the engine 22 is the power distribution and integration mechanism 30. Torque conversion operation mode for driving and controlling the motor MG1 and the motor MG2 so that the torque is converted by the motor MG1 and the motor MG2 and output to the ring gear shaft 32a, and the required power and the power required for charging and discharging the battery 50. The engine 22 is operated and controlled so that suitable power is output from the engine 22, and all or part of the power output from the engine 22 with charging / discharging of the battery 50 is the power distribution and integration mechanism 30, the motor MG1, and the motor. The required power is converted to the ring gear shaft 32 with torque conversion by MG2. Charge / discharge operation mode in which the motor MG1 and the motor MG2 are driven and controlled to be output to each other, and a motor operation mode in which the operation of the engine 22 is stopped and the power corresponding to the required power from the motor MG2 is output to the ring gear shaft 32a. and so on.

  Next, the operation of the hybrid vehicle 20 of the embodiment configured as described above, particularly the operation when the shift position SP is the neutral (N) position when the vehicle is stopped will be described. FIG. 2 is a flowchart showing an example of an N-position control routine executed by the hybrid electronic control unit 70. This routine is repeatedly executed every predetermined time (for example, every several msec) when the shift position SP is the N position while the vehicle is stopped. The stopped state can be determined as a state where the vehicle speed V from the vehicle speed sensor 87 is less than a predetermined vehicle speed (for example, 3 km / h, 5 km / h, etc.).

  When the N-position control routine is executed, first, the CPU 72 of the hybrid electronic control unit 70 first determines the accelerator opening Acc from the accelerator pedal position sensor 84, the brake pedal position BP from the brake pedal position sensor 86, and the purification device 23. Data necessary for control, such as the catalyst temperature Tc, is input (step S100), and an instruction signal is transmitted to the motor ECU 40 so that the gates of the inverters 41, 42 that drive the motors MG1, MG2 are shut off (step S100). S110). Here, the catalyst temperature Tc detected by the temperature sensor 23a attached to the purifier 23 is input from the engine ECU 24 by communication. In addition, the motor ECU 40 that has received the instruction signal performs the gate blocking of the inverters 41 and 42 or maintains the state in which the gate blocking is performed.

  Subsequently, it is determined whether or not the inputted catalyst temperature Tc is lower than a predetermined temperature Tref determined by experiments or the like as a lower limit temperature at which the catalyst of the purification device 23 is activated and functions or a temperature slightly higher than this (step). S120) When the catalyst temperature Tc is equal to or higher than the predetermined temperature Tref, it is determined that it is not necessary to operate the engine 22 in order to warm up the catalyst, and an instruction signal is transmitted to the engine ECU 24 so that the operation of the engine 22 is stopped. (Step S130), the N-position control routine is terminated. The engine ECU 24 that has received the instruction signal stops the operation of the engine 22 or maintains the state in which the engine 22 is stopped.

  When the catalyst temperature Tc is lower than the predetermined temperature Tref, it is determined that it is necessary to operate the engine 22 in order to warm up the catalyst, and the engine 22 is operated at a predetermined rotational speed (for example, the rotational speed for idle operation (800 rpm, 1000 rpm, etc. ) Or a slightly higher rotation speed), an instruction signal is transmitted to the engine 22 (step S140). The engine ECU 24 that has received the instruction signal performs operation control such as fuel injection control, ignition control, and intake air amount adjustment control so that the engine 22 operates independently at a predetermined rotational speed.

  When the engine 22 is autonomously operated in this way, it is determined whether or not the brake is off (step S150), and the opening at which the driver can determine that the driver is about to start from the state where the accelerator opening Acc is stopped. It is determined whether or not a predetermined opening Aref (for example, 8%, 10%, 12%, etc.) determined in advance by an experiment or the like (step S160). When Acc is less than the predetermined opening Aref, it is determined that the driver is not going to start, and the N-position control routine is terminated as it is.

  On the other hand, when the brake is off and the accelerator opening Acc is equal to or greater than the predetermined opening Aref, it is determined that the driver is about to start and warning information (for example, a display indicating that the driver's shift operation is incorrect) Requests to change the shift position SP to the D position and "shift lever SP is in the N range" or "information cannot be started because the shift lever is in the N range". Warning information (for example, information for displaying and outputting a message such as “Please operate the shift lever to the D range” by characters or images) is displayed on the display 88 and displayed on the display 88. So that a warning sound (for example, a beep sound) is output from the speaker 89 as a sound. It outputs a signal (step S170), and ends the N position control routine.

  Here, the reason for notifying such warning information and warning sound will be described. If the driver depresses the accelerator pedal to start the vehicle when the engine is running autonomously with the shift position at the N position when the vehicle is stopped, only the power from the engine is provided without a motor for running. In a traveling vehicle, the driver is more likely to notice an erroneous operation of the shift lever by changing the engine sound due to the increase in the engine speed without changing the stopped state. On the other hand, in this case, in the hybrid vehicle 20 of the embodiment, since the stopped state does not change and the engine sound does not change due to the increase of the engine speed, the driver does not notice the erroneous operation of the shift lever, that is, I feel uncomfortable because I can't understand why I can't start. Therefore, it is conceivable to increase the rotational speed Ne of the engine 22 so that the driver can easily notice the erroneous operation of the shift lever 81. However, in the hybrid vehicle 20 of the embodiment, when the shift position SP is the N position, the engine 22 The rotation speed Ne cannot be changed. That is, in the hybrid vehicle 20 of the embodiment, the crankshaft 26 of the engine 22 and the rotor of the motor MG1 are mechanically connected to the ring gear shaft 32a as the drive shaft via the power distribution and integration mechanism 30 as the planetary gear mechanism. Therefore, when the rotation speed Ne (predetermined rotation speed) when the engine 22 is operating independently is increased, the torque generated by the inertia of the rotation system including the motor MG1 and the engine 22 causes the ring gear shaft 32a to rotate up. Will act on. For this reason, when the shift position SP is the N position where torque should not be output to the axle side, such motoring is basically impossible. In the hybrid vehicle 20 of the embodiment, in consideration of such vehicle characteristics, the accelerator opening Acc is equal to or greater than the predetermined opening Aref when the engine 22 is autonomously operated with the shift position SP at the N position when the vehicle is stopped. When this happens, the driver is notified of the warning information and warning sound described above. Such control makes it easier for the driver to notice an erroneous operation of the shift lever 81, and prevents the driver trying to start from feeling uncomfortable due to the inability to understand the cause of the vehicle not starting. As a result, the driver is prompted to change the shift lever 81 to the traveling D position (or R position), and the vehicle can be easily started in response to the driver's request.

  According to the hybrid vehicle 20 of the embodiment described above, when the accelerator opening Acc is equal to or greater than the predetermined opening Aref when the engine 22 is autonomously operated with the shift position SP at the N position when the vehicle is stopped, Warning information indicating that the driver's shift operation is incorrect, warning information indicating that the shift position SP is to be changed to the D position, and a warning sound are notified to the driver. It becomes easy to notice and it can suppress giving the driver a sense of incongruity. Further, when the vehicle is braked on when the engine 22 is operating independently with the shift position SP at the N position when the vehicle is stopped, a warning is issued regardless of whether or not the accelerator opening Acc is equal to or greater than the predetermined opening Aref. Since information and warning sounds are not notified, it is possible to suppress notification of unnecessary information to a driver who is not going to start. In addition, warning information by displaying that the driver's shift operation is incorrect, warning information by displaying that the shift position SP is required to be changed to the D position, and a warning sound are output to the driver. It is possible to more reliably suppress the driver from feeling uncomfortable.

  In the hybrid vehicle 20 of the embodiment, whether or not the accelerator opening Acc is greater than or equal to the predetermined opening Aref when the brake is on when the engine 22 is operating independently with the shift position SP at the N position when the vehicle is stopped. Regardless of whether or not the warning information or warning sound is not notified, the engine 22 is operated autonomously with the shift position SP at the N position when the vehicle is stopped regardless of whether the brake is off or the brake is on. When the predetermined opening degree Aref is exceeded, warning information and warning sound may be notified.

  In the hybrid vehicle 20 of the embodiment, the driver is informed of the warning information that the shift operation of the driver is incorrect, the warning information that the shift position SP is requested to be changed to the D position, and the warning sound. However, any one or two of these three may be notified to the driver. Further, in the hybrid vehicle 20 of the embodiment, the warning sound is output. However, instead of the warning sound, the warning information and the shift that outputs a message by an artificial voice indicating that the driver's shift operation is incorrect are shifted. The speaker 89 may output at least one of warning information for outputting an artificial voice message requesting the change of the position SP to the D position.

  In the hybrid vehicle 20 of the embodiment, the power of the motor MG2 is changed by the reduction gear 35 and output to the ring gear shaft 32a. However, as illustrated in the hybrid vehicle 120 of the modified example of FIG. May be output to an axle (an axle connected to the wheels 64a and 64b in FIG. 3) different from an axle to which the ring gear shaft 32a is connected (an axle to which the drive wheels 63a and 63b are connected).

  Moreover, it is not limited to what is applied to such a hybrid vehicle, It is good also as a form of the alerting | reporting control method of a hybrid vehicle.

  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. In the embodiment, the engine 22 corresponds to an “internal combustion engine”, the motor MG1 corresponds to a “generator”, the power distribution and integration mechanism 30 corresponds to a “planetary gear mechanism”, and the motor MG2 corresponds to a “motor”. The battery 50 corresponds to “power storage means”, the shift position sensor 82 corresponds to “shift position detection means”, the accelerator pedal position sensor 84 corresponds to “accelerator operation amount detection means”, the display 88, the speaker 89, and The amplifier 89a corresponds to “notification means”, and when the shift position SP is at the N position, the gates of the inverters 41 and 42 of the motors MG1 and MG2 are shut off and an instruction signal is transmitted to stop the engine 22 or to operate independently. The hybrid for executing the processing of steps S110 to S140 of the N-position control routine of FIG. The electronic control unit 70, the motor ECU 40 that receives the instruction signal and shuts off the gates of the inverters 41 and 42, and the engine ECU 24 that receives the instruction signal and stops the engine 22 or controls the operation correspond to “drive control means”. Warning information indicating that the driver's shift operation is incorrect when the accelerator opening Acc is greater than or equal to the predetermined opening Aref when the engine 22 is operating autonomously with the shift position SP at the N position when the vehicle is stopped. 2 and the warning information for requesting the change of the shift position SP to the D position, and a signal is output to the display 88 and the speaker 89 so that a warning sound is output as sound. The hybrid electronic control unit 70 executing the processing of steps S140 to S170 of the routine is Corresponding to the notification control 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 “generator” is not limited to the motor MG2 configured as a synchronous generator motor, and may be any type of motor as long as it can input and output power, such as an induction motor. The “planetary gear mechanism” is not limited to the power distribution and integration mechanism 30 described above, but is connected to four or more shafts by using a double pinion type planetary gear mechanism or a combination of a plurality of planetary gear mechanisms. As long as the three rotating elements are connected to the three shafts of the output shaft of the internal combustion engine, the rotating shaft of the generator, and the driving shaft connected to the driving wheel, any one may be used. The “motor” is not limited to the motor MG2 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. . The “storage means” is not limited to the battery 50 as a secondary battery, and may be anything as long as it can exchange power with a generator and an electric motor such as a capacitor. The “shift position detecting means” is not limited to the shift position sensor 82, and any means that detects the shift position based on the shift operation of the driver may be used. The “accelerator operation amount detection means” is not limited to the accelerator pedal position sensor 84, and any device that detects the driver's accelerator operation amount may be used. The “notification means” is not limited to the display 88, the speaker 89, and the amplifier 89a, and only one of them may be used as long as it informs the driver of information. The “drive control means” is not limited to the combination of the hybrid electronic control unit 70, the engine ECU 24, and the motor ECU 40, and may be configured by a single electronic control unit. Further, the “drive control means” is not limited to one that shuts off the gates of the inverters 41 and 42 of the motors MG1 and MG2 and stops the engine 22 or operates independently when the shift position SP is the N position. In addition, when the detected shift position is the neutral position, any engine may be used as long as it controls the internal combustion engine, the generator, and the electric motor so that the driving power is not output to the drive shaft. The “notification control unit” is not limited to one configured by a single electronic control unit such as the hybrid electronic control unit 70, and may be configured by a combination of a plurality of electronic control units. Further, the “notification control means” may be a driver's shift operation when the accelerator opening Acc is greater than or equal to a predetermined opening Aref when the engine 22 is operating autonomously with the shift position SP at the N position when the vehicle is stopped. Is output to the display 88 and the speaker 89 so that a warning sound is output as well as warning information indicating that the shift position SP is requested to be changed to the D position. The driver is not limited to the one in which the accelerator operation amount detected when the internal combustion engine is operating autonomously with the shift position detected at the time of stopping being in the neutral position is greater than or equal to the predetermined operation amount. Any means can be used as long as it controls the notification means so that the predetermined information regarding the error in the shift operation is notified. It may be as.

  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. Therefore, the elements of the invention described in the column of means for solving the problems are not limited. That is, the interpretation of the invention described in the column of means for solving the problems 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 problems. It is only a specific example.

  As mentioned above, although the form for implementing this invention was demonstrated using the Example, this invention is not limited at all to such an Example, In the range which does not deviate from the summary of this invention, it is with various forms. Of course, it can be implemented.

  The present invention can be used in the manufacturing industry of hybrid vehicles.

  20,120 Hybrid vehicle, 21 passenger compartment, 22 engine, 23 purification device, 23a temperature sensor, 24 engine electronic control unit (engine ECU), 26 crankshaft, 28 damper, 30 power distribution integrated mechanism, 31 sun gear, 32 ring gear , 32a ring gear shaft, 33 pinion gear, 34 carrier, 35 reduction gear, 40 motor electronic control unit (motor ECU), 41, 42 inverter, 43, 44 rotational position detection sensor, 50 battery, 51 temperature sensor, 52 battery electronics Control unit (battery ECU), 54 power line, 60 gear mechanism, 62 differential gear, 63a, 63b drive wheel, 64a, 64b wheel, 70 hybrid electronic control unit, 72 CPU, 74 ROM, 76 RAM, 80 ignition switch, 81 shift lever, 82 shift position sensor, 83 accelerator pedal, 84 accelerator pedal position sensor, 85 brake pedal, 86 brake pedal position sensor, 87 vehicle speed sensor, 88 display, 89 speaker, 89a amplifier, MG1 , MG2 motor.

Claims (5)

A planet in which three rotating elements are connected to three axes of an internal combustion engine, a generator capable of inputting / outputting power, an output shaft of the internal combustion engine, a rotating shaft of the generator, and a driving shaft connected to driving wheels. A hybrid vehicle comprising a gear mechanism, an electric motor capable of inputting / outputting power to / from the drive shaft, and an electric storage means capable of exchanging electric power with the generator and the electric motor,
Shift position detecting means for detecting a shift position based on the shift operation of the driver;
An accelerator operation amount detection means for detecting the driver's accelerator operation amount;
An informing means for informing the driver of information;
Drive control means for controlling the internal combustion engine, the generator, and the electric motor so that driving power is not output to the drive shaft when the detected shift position is a neutral position;
When the detected accelerator operation amount is equal to or greater than a predetermined operation amount when the internal combustion engine is operating autonomously with the detected shift position being in the neutral position when the vehicle is stopped, Notification control means for controlling the notification means so that the information is notified;
A hybrid car with   A planet in which three rotating elements are connected to three axes of an internal combustion engine, a generator capable of inputting / outputting power, an output shaft of the internal combustion engine, a rotating shaft of the generator, and a driving shaft connected to driving wheels. A hybrid vehicle comprising a gear mechanism, an electric motor capable of inputting / outputting power to / from the drive shaft, and an electric storage means capable of exchanging electric power with the generator and the electric motor,
  Shift position detecting means for detecting a shift position based on the shift operation of the driver;
  An accelerator operation amount detection means for detecting the driver's accelerator operation amount;
  An informing means for informing the driver of information;
  Drive control means for controlling the internal combustion engine, the generator, and the electric motor so that driving power is not output to the drive shaft when the detected shift position is a neutral position;
  When the internal combustion engine is operated autonomously with the detected shift position being in the neutral position when the vehicle is stopped, and the engine output cannot be increased with respect to the detected accelerator operation amount than in the autonomous operation state, the driver Notification control means for controlling the notification means so as to notify predetermined information regarding an error in the shift operation of
  A hybrid car with A hybrid vehicle according to claim 1 or 2 ,
When the brake is on when the internal combustion engine is operating autonomously while the detected shift position is in the neutral position when the vehicle is stopped, the notification control means has the detected accelerator operation amount greater than or equal to the predetermined operation amount. A means for controlling the notification means so that the predetermined information is not notified regardless of whether or not
Hybrid car. A hybrid vehicle according to any one of claims 1 to 3 ,
The predetermined information is information based on at least one of a display and a sound indicating that the driver's shift operation is incorrect and / or a request to change the shift position to the driving position.
Hybrid car. A planet in which three rotating elements are connected to three axes of an internal combustion engine, a generator capable of inputting / outputting power, an output shaft of the internal combustion engine, a rotating shaft of the generator, and a driving shaft connected to driving wheels. A gear mechanism, an electric motor capable of inputting / outputting power to / from the drive shaft, an electric storage means capable of exchanging electric power with the generator and the electric motor, an informing means for notifying the driver of information, and a shift operation of the driver And a drive control means for controlling the internal combustion engine, the generator, and the electric motor so that traveling power is not output to the drive shaft when the shift position based on is a neutral position. And
When the driver's accelerator operation amount exceeds a predetermined operation amount when the internal combustion engine is operating independently while the shift position based on the driver's shift operation is in the neutral position when the vehicle is stopped, the driver's shift operation error Controlling the notifying means so that predetermined information regarding is notified,
An information control method for a hybrid vehicle.

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