JP2011218843A - Hybrid vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve energy efficiency of a hybrid vehicle when an engine is cold.SOLUTION: During the execution of route guide by a navigation system, when an atmospheric temperature Tatm is lower than a threshold Tref for requesting heating, and a charge storage ratio SOC is greater than or equal to a total required charge storage ratio SOC1 (steps S200-S230), the vehicle stops an engine operation and travels based on electric traveling powered from a motor (step S240). By this, the charge storage ratio SOC of the battery can be lowered. At next system initiation, greater electric power can be charged into the battery by the longer load operation of the engine, and accordingly, the energy efficiency can be improved.

Description

  The present invention relates to a hybrid vehicle.

  Conventionally, in this type of hybrid vehicle, a drive shaft connected to an axle, an output shaft of an engine, and a rotation shaft of a first motor are connected to three rotation elements of a planetary gear mechanism and a rotation shaft of a second motor is used. In a hybrid vehicle connected to the drive shaft, when the air conditioning request is made while the vehicle is running in the EV traveling mode in which the engine is stopped and the vehicle is driven by the power from the electric motor, the air conditioning request adjusts the temperature in the passenger compartment. Therefore, when the air conditioner is a request for operating the air conditioner, the travel in the EV travel mode is continued, and when the air condition request is a request for operating the defroster for defrosting the window, the engine is started and the EV travel is performed. A device for canceling the mode has been proposed (see, for example, Patent Document 1). In this automobile, such control suppresses a decrease in energy efficiency due to frequent start of the engine when an air conditioning request is made.

JP 2007-230385 A

  In the above-described hybrid vehicle, when an air conditioning request for heating the passenger compartment is made in a state where the engine operation is stopped and the vehicle is stopped when it is cold, control for starting engine load operation and warming up the engine is performed. Has been done. When the engine is loaded, the battery is charged with the power generated by the first motor. However, when the battery is already near full charge, the battery cannot be charged with the power generated by the first motor, so the engine is independent. In order to operate, energy efficiency may fall. Therefore, it is desirable to improve the energy efficiency by continuing the engine load operation for a longer time.

  The main purpose of the hybrid vehicle of the present invention is to improve energy efficiency during cold weather.

  The hybrid vehicle of the present invention employs the following means in order to achieve the main object described above.

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 gear mechanism, an electric motor capable of inputting / outputting power to / from the drive shaft, a battery capable of exchanging electric power with the generator and the electric motor, a heating device for heating a passenger compartment using the internal combustion engine as a heat source, and the battery Storage ratio detecting means for detecting a storage ratio as a ratio of the storage capacity stored in the battery to the total capacity, and intermittent operation of the internal combustion engine so that the detected storage ratio falls within a predetermined target storage ratio range In a hybrid vehicle comprising: a control means for controlling the internal combustion engine, the generator, and the electric motor so as to travel with required power required for traveling with
From the current position to the set target position using the map information stored in the storage medium, the current position of the vehicle, and the target position set by the operator A navigation system for performing route guidance;
A temperature sensor for detecting the outside air temperature;
Using the map information stored in the navigation system, the current position of the vehicle, and the set target position, the setting from the current position is performed using the power from the electric motor while the operation of the internal combustion engine is stopped. The required power storage ratio for traveling required to travel to the target position is set, and is set to the required power storage ratio for starting that is predetermined as the power storage ratio of the battery required to start the internal combustion engine. A total required power storage ratio setting means for setting a total required power storage ratio by adding the required power storage ratio for traveling;
With
The control means has a heating operation request for operating the internal combustion engine so that the outside air temperature detected by the temperature sensor during route guidance by the navigation system promotes heating of the passenger compartment. The battery storage rate is within the target power storage rate range when the battery storage rate is less than the total required power storage rate when the temperature is below a predetermined temperature as an upper limit of the temperature range to be made The internal combustion engine, the generator, and the electric motor are controlled so as to travel with the required power accompanied by intermittent operation of the internal combustion engine, and when the storage ratio of the battery is equal to or greater than the total required storage ratio, the storage amount of the battery Output power from the electric motor in a state where the operation of the internal combustion engine is stopped regardless of whether or not the electric power is within the target power storage ratio range. And summarized in that a means for controlling said electric motor and said internal combustion engine and the generator to traveling by the power demand.

In the hybrid vehicle of the present invention, the internal combustion engine and the generator are driven so as to travel with the required power required for traveling with intermittent operation of the internal combustion engine so that the detected power storage ratio is within a predetermined target power storage ratio range. And the motor. As a result, the vehicle can travel with the required power while keeping the storage ratio of the battery within the target storage ratio range. Then, the outside temperature detected by the temperature sensor while the route guidance is being executed by the navigation system is used as the upper limit of the temperature range in which the heating operation request for operating the internal combustion engine is made to promote the heating of the passenger compartment. When the temperature is below a predetermined temperature set in advance, the battery is driven by the requested power with intermittent operation of the internal combustion engine so that the battery storage ratio is within the target storage ratio range when the battery storage ratio is less than the total required storage ratio. The internal combustion engine, the generator, and the electric motor are controlled to do so.
As a result, the vehicle can travel with the required power while keeping the storage ratio of the battery within the target storage ratio range. When the battery storage ratio is equal to or greater than the total required storage ratio, the request is made while outputting power from the electric motor while the operation of the internal combustion engine is stopped regardless of whether or not the battery storage capacity is within the target storage ratio range. The internal combustion engine, the generator, and the electric motor are controlled so as to travel by power. Since it is possible to arrive at the target position in a state where the storage ratio of the battery is about the required storage ratio for starting, there is a heating operation request for operating the internal combustion engine in order to promote the heating of the passenger compartment when the system is next started. When done, the internal combustion engine can be operated for a longer time. Thereby, energy efficiency can be improved.

1 is a configuration diagram showing an outline of the configuration of a hybrid vehicle 20 as a first embodiment of the present invention. 4 is a flowchart showing an example of a system startup post-processing routine executed by the hybrid electronic control unit 50. 5 is a flowchart showing an example of a route guidance execution time control routine executed by the hybrid electronic control unit 50. 4 is an explanatory diagram showing an example of a running state of a hybrid vehicle 20 and a state of a battery 48. FIG.

  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 a first embodiment of the present invention. As shown in the figure, the hybrid vehicle 20 of the embodiment has various detection values such as an engine 32 that uses gasoline or light oil as fuel, and a coolant temperature Tw from a temperature sensor 33 that detects the temperature of coolant of the engine 32. And an engine electronic control unit 36 for driving and controlling the engine 32 by inputting control values, and a drive having a carrier connected to the crankshaft 34 of the engine 32 and coupled to the drive wheels 26a and 26b via the differential gear 24. A planetary gear 38 having a ring gear connected to the shaft 22, a motor 41 configured as a synchronous generator motor, for example, and a rotor connected to a sun gear of the planetary gear 38, and a rotor configured as a synchronous generator motor, for example, to the drive shaft 22. Connected motor 42 and inverter 4 for driving motors 41, 42 , 44, and a motor electronic control unit 46 for controlling driving of the motors 41, 42 by switching control of switching elements (not shown) of the inverters 43, 44, and exchanging electric power with the motors 41, 42 via the inverters 43, 44. Battery 48 and a recording medium such as a hard disk in which map data and a route search program are stored to acquire information on the current position of the vehicle, and from the current position using the current position, destination and map data of the vehicle A navigation system 60 that searches for a travel route to the destination and outputs it on a display (not shown) and heat of cooling water (not shown) that cools the engine 32 when the temperature in the passenger compartment is lower than the set temperature Tset is used. A heating device 62 for heating the passenger compartment to the set temperature, The battery temperature Tb from the temperature sensor 49 that detects the temperature of the teller 48, the shift position from the shift position sensor 52 that detects the position of the shift lever, and the accelerator opening from the accelerator pedal position sensor 54 that detects the amount of depression of the accelerator pedal , The brake position from the brake pedal position sensor 56 that detects the amount of depression of the brake pedal, the vehicle speed V from the vehicle speed sensor 58, and the outside air temperature Tat from the outside air temperature sensor 64 that detects the outside air temperature and the electronic control for the engine And a hybrid electronic control unit 50 that controls the entire vehicle by communicating with the unit 36, the motor electronic control unit 46, the navigation system 60, and the heating device 62. In the storage medium built in the navigation system 60, as map data, service information (tourist information, parking lots, etc.) and road information for each predetermined travel section are stored in a database. As road information, area information around the road (mountainous area, urban area, suburb, etc.), road type information (general road, expressway, etc.), and road gradient information (flat, gentle, sudden, etc.) are stored. .

  The hybrid vehicle 20 of the embodiment basically travels with the intermittent operation of the engine 32 by the drive control described below executed by the hybrid electronic control unit 50. Hereinafter, for convenience of explanation, traveling using power output from the engine 32 and power input / output from the motor 42 is referred to as hybrid traveling, and traveling using only power input / output from the motor 42 is electrically driven. That's it. First, the hybrid electronic control unit 50 sets and sets the required torque required for the drive shaft 22 for traveling according to the accelerator opening from the accelerator pedal position sensor 54 and the vehicle speed V from the vehicle speed sensor 58. The travel power required for travel is calculated by multiplying the required torque by the rotational speed of the drive shaft 22 (for example, the rotational speed obtained by multiplying the rotational speed of the motor 42 or the vehicle speed V by the conversion factor). Subsequently, the correction power for charging / discharging the battery 48 obtained according to the storage ratio SOC, which is the ratio of the stored power stored in the battery 48 to the total capacity from the calculated traveling power (when discharging from the battery 48) Is set to an engine command power as a power to be output from the engine 32. Here, as the storage ratio SOC, a current calculated by charging / discharging the battery 48 and calculating based on the charge / discharge current is used. Further, the correction power is set so that the storage ratio SOC is within the normal target SOC range of 40% or more and 60% or less. Then, the set engine command power is compared with a start threshold value for starting the engine 32 and a stop threshold value for stopping the operation of the engine 32, and the engine command power is calculated when the operation of the engine 32 is stopped. When the engine command power is equal to or greater than the stop threshold when the start threshold is exceeded or when the engine 32 is operating, the engine 32 is started when the engine 32 is stopped and the engine 32 is operated. When the engine is in operation, the operation of the engine 32 is continued. Here, the starting threshold is a predetermined power as the power in the vicinity of the lower limit of the power region where the engine 32 can be efficiently operated, and the stopping threshold is a power slightly smaller than the starting threshold. The specified power was used. When the operation of the engine 32 is continued or after the engine 32 is started, an operation line (for example, a relationship between the rotational speed and the torque of the engine 32 that can output the engine command power from the engine 32 efficiently) (for example, The target operating point consisting of the target rotational speed and target torque of the engine 32 is set using the fuel efficiency optimal operation line), and the engine 32 is within the range of the input / output limit as the maximum power that can charge and discharge the battery 48. A torque command as a torque to be output from the motor 41 is set by rotation speed feedback control so that the rotation speed of the motor 41 becomes the target rotation speed, and is driven via the planetary gear 38 when the motor 41 is driven by the torque command. The torque obtained by subtracting the torque acting on the shaft 22 from the required torque is the torque command of the motor 42. To be set. The set target rotational speed and target torque of the engine 32 are transmitted to the engine electronic control unit 36, and torque commands for the motors 41 and 42 are transmitted to the motor electronic control unit 46. The engine electronic control unit 36 that has received the target rotational speed and the target torque executes intake air amount control, fuel injection control, ignition control, etc. of the engine 32 so that the engine 32 is operated by the target rotational speed and the target torque. The motor electronic control unit 46 that has received the torque commands of the motors 41 and 42 performs switching control of the switching elements of the inverters 43 and 44 so that the motors 41 and 42 are driven by the torque commands. By such control, it is possible to travel by hybrid travel while keeping the storage ratio SOC of the battery 48 within the normal target SOC range.

  The set engine command power is compared with a start threshold value for starting the engine 32 and a stop threshold value for stopping the operation of the engine 32. When the engine 32 is operating, the engine command power is set to the stop threshold value. When the engine command power is equal to or less than the start threshold when the operation is lower or when the operation of the engine 32 is stopped, an engine operation stop command is transmitted to the engine electronic control unit 36 so as to stop the operation of the engine 32. The engine electronic control unit 36 that has received the engine operation command stops the operation of the engine 32 when the engine 32 is operated, and continues to stop the operation of the engine 32 when the operation of the engine 32 is stopped. . When the operation stop of the engine 32 is continued or after the operation of the engine 32 is stopped, a value 0 is set in the torque command of the motor 41 and the required torque is set in the torque command of the motor 42. , 42 is transmitted to the motor electronic control unit 46. The motor electronic control unit 46 that has received the torque commands of the motors 41 and 42 performs switching control of the switching elements of the inverters 43 and 44 so that the motors 41 and 42 are driven by the torque commands. By such control, it is possible to travel by electric travel while keeping the storage ratio SOC of the battery 48 within the normal target SOC range.

  Further, in the hybrid vehicle 20 of the embodiment, when the system 32 is started and the operation of the engine 32 is continuously stopped and stopped, as shown in the system startup post-processing routine of FIG. When a heating operation request for warming up the engine 32 for heating is made (eg, when the engine temperature is lower than the set temperature Tset) (step S100), the battery 48 is charged while the engine 32 is warmed up and the engine 32 is warmed up. The engine warm-up control is executed (step S110). When the engine warm-up control is executed, the hybrid electronic control unit 50 first sets the predetermined motoring torque as the torque command of the motor 41 and sets the torque command of the motor 41 to be electronically controlled for the motor. Send to unit 46. The motor electronic control unit 46 that has received the torque command of the motor 41 performs switching control of the switching element of the inverter 43 so that the engine 32 is motored by the motor 41. Thus, during the motoring of the engine 32 by the motor 41, the operation is started so that the operation of the engine 32 is started when the rotational speed of the engine 32 becomes equal to or higher than the starting rotational speed when the engine 32 is started. The instruction is transmitted to the engine electronic control unit 36. Receiving the operation start instruction, the engine electronic control unit 36 performs processing for starting the operation of the engine 32 such as fuel injection control and ignition control in the engine 32. Here, as the starting rotational speed, a predetermined rotational speed is used as the rotational speed near the lower limit of the rotational speed at which the engine 32 can be stably operated. When the operation of the engine 32 is started in this way, the above-mentioned starting threshold value is set to the command power of the engine 32, and the engine command power can be output from the engine 32 efficiently. The target operation point consisting of the target engine speed of the engine 32 and the target torque is set using the operation line (for example, the fuel efficiency optimal operation line), and the input / output restriction as the maximum power that can charge and discharge the battery 48 is set. Within the range, a torque command as a torque to be output from the motor 41 is set by the rotational speed feedback control for setting the rotational speed of the engine 32 to the target rotational speed, and the planetary gear 38 is set when the motor 41 is driven by the torque command. The torque obtained by subtracting the torque acting on the drive shaft 22 from the required torque via the motor 42 is set as the torque command. The set target rotational speed and target torque of the engine 32 are transmitted to the engine electronic control unit 36, and torque commands for the motors 41 and 42 are transmitted to the motor electronic control unit 46. The engine electronic control unit 36 that has received the target rotational speed and the target torque executes intake air amount control, fuel injection control, ignition control, etc. of the engine 32 so that the engine 32 is operated by the target rotational speed and the target torque. The motor electronic control unit 46 that has received the torque commands of the motors 41 and 42 performs switching control of the switching elements of the inverters 43 and 44 so that the motors 41 and 42 are driven by the torque commands. By such control, when a heating operation request is made while the operation of the engine 32 is stopped after the system is started, the operation of the engine 32 is started and the start threshold power is output from the engine 32. Since the engine 32 is loaded, the engine 32 can be warmed up and the battery 48 can be charged with the power from the engine 32.

  Furthermore, in the hybrid vehicle 20 of the embodiment, when the route guidance by the navigation system 60 is being executed, the vehicle travels by the route guidance execution drive control described below, which is executed by the hybrid electronic control unit 50. FIG. 3 is a flowchart showing an example of a route guidance execution drive control routine executed by the hybrid electronic control unit 50. As shown in the figure, the hybrid electronic control unit 50 first executes a process of comparing the outside air temperature Tatm from the outside air temperature sensor 64 with the heating request threshold value Tref (step S200). Here, the heating request threshold value Tref uses a predetermined temperature as a temperature in the vicinity of the upper limit of the outside air temperature at which the engine 32 needs to be warmed up in order to heat the passenger compartment by the heating device 62. When the outside air temperature Tatm exceeds the heating request threshold value Tref, a heating operation request for warming up the engine 32 for heating is performed when the system is started after reaching the destination and once the hybrid vehicle is shut down. The engine 32 and the motors 41 and 42 are determined to travel by hybrid traveling or electric traveling while keeping the storage ratio SOC of the battery 48 within the normal target SOC range according to the engine command power as described above. Is controlled (step S210). With such control, when the outside air temperature Tatm is equal to or higher than the heating request threshold Tref, the engine 32 can travel with intermittent operation while keeping the power storage rate SOC of the battery 48 within the normal target SOC range.

  When the outside air temperature Tatm is equal to or lower than the heating request threshold Tref (step S200), subsequently, from the current location to the destination using the current location, the destination, and the map data of the hybrid vehicle 20 input from the navigation system 60 through communication. The required storage ratio for starting, which is the minimum required storage ratio when starting the engine 32, is added to the required storage ratio for driving, which is a storage ratio SOC that can be sufficiently driven only by electric driving without operating the engine 32. The total required power storage ratio SOC1 is calculated (step S220). The required power storage ratio for travel is calculated using the road information of the route from the current location to the destination input from the navigation system 60 and the distance from the current location to the destination. For example, for the entire route from the current location to the destination The calculation is made such that the greater the percentage of mountainous areas, the greater the required power storage ratio for travel, and the longer the distance to the destination, the greater the required power storage ratio for travel. Further, as the required power storage ratio for starting, a value obtained in advance through experiments, analysis, or the like is used as the power storage ratio required when the engine 32 is motored by the motor 41 as described above.

  After calculating the total required power storage ratio SOC1, the current power storage ratio SOC and the total required power storage ratio SOC1 are compared (step S230). When the power storage ratio SOC is less than the total required power storage ratio SOC1, the battery 48 is charged. Since the amount of stored electric power is not sufficient, it is determined that it is not possible to reach the destination only by electric travel without operating the engine 32, and the vehicle travels by hybrid travel or electric travel according to the engine command power. The target rotational speed and target torque of the engine 32 and the operation stop command of the engine 32 are transmitted to the engine electronic control unit 36 to control the engine 32 and set the torque commands of the motors 41 and 42 to set the motor electronic control unit. 46 to control the motors 41 and 42 (step S210). By such control, when the outside air temperature Tatm is equal to or lower than the heating request threshold Tref and the power storage rate SOC is less than the total required power storage rate SOC1, the engine 32 is intermittently operated until reaching the destination and completing the route guidance. You can travel with it.

  When the power storage ratio SOC is equal to or greater than the total required power storage ratio SOC1 (step S230), the amount of power stored in the battery 48 is sufficient, so that the destination may be reached only by electric travel without operating the engine 32. If it is determined that it is possible, an operation stop command for the engine 32 is transmitted to the engine electronic control unit 36 to control the engine 32 so as to run by electric driving, and the torque command for the motors 41 and 42 is set to control the motor electronic control. It transmits to the unit 46 and controls the motors 41 and 42 (step S240). As described above, when the outside air temperature Tatm is equal to or lower than the heating request threshold Tref and the power storage ratio SOC is equal to or higher than the total required power storage ratio SOC1, the vehicle travels by electric travel until reaching the destination and finishing the route guidance. Can do.

  FIG. 4 is an explanatory diagram showing an example of the traveling state of the hybrid vehicle 20 of the embodiment and the storage ratio SOC of the battery 48 in each traveling state. When the outside air temperature Tatm is equal to or higher than the heating request threshold Tref or when the power storage rate SOC is less than the total required power storage rate SOC1, the objective is achieved by hybrid driving or electric driving (normal driving in the figure) with intermittent operation of the engine 32. Since the vehicle travels until it reaches near the ground and the route guidance is completed, the storage rate SOC of the battery 48 is maintained within the normal target SOC range. When the outside air temperature Tatm is less than the heating request threshold Tref and the power storage rate SOC is equal to or greater than the total required power storage rate SOC1 (in the figure, there is a cold battery margin), the route reaches the destination and the route guidance ends. Since the vehicle 48 travels by electric travel while using the power of the battery 48, the storage rate SOC of the battery 48 becomes as low as several percent near the destination. When the system is started after the destination is reached and the system of the hybrid vehicle 20 is once shut down, when the outside air temperature Tatm is lower than the heating request threshold Tref, heating is performed in the system startup post-processing routine illustrated in FIG. Although it is considered that there are many opportunities for the battery 48 to be charged while the engine 32 is warmed up when the operation request is made (steps S100 and S110), the storage rate SOC of the battery 48 is relatively low when the system is started. More power can be charged to the battery 48. As described above, when the outside air temperature Tatm is lower than the heating request threshold Tref and the power storage rate SOC is equal to or greater than the total required power storage rate SOC1, the vehicle travels by electric driving until reaching the destination and completing the route guidance. Thus, the storage ratio SOC of the battery 48 can be lowered, the engine 32 can be loaded for a longer time when the system is next started, and more power can be charged into the battery 48, improving energy efficiency. Can be planned.

  According to the hybrid vehicle 20 of the embodiment described above, when the outside air temperature Tatm is equal to or lower than the heating request threshold Tref and the power storage rate SOC is equal to or higher than the total required power storage rate SOC1, the route guidance is provided by reaching the vicinity of the destination. By running by electric running until the end, the storage ratio SOC of the battery 48 can be lowered, and when the system is started next time, the engine 32 is loaded for a longer time to charge the battery 48 with more power. And energy efficiency can be improved.

  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 32 corresponds to the “internal combustion engine”, the motor 41 corresponds to the “generator”, the planetary gear 38 corresponds to the “planetary gear mechanism”, the motor 42 corresponds to the “electric motor”, and the battery 48. Corresponds to the “battery”, the heating device 62 corresponds to the “heating device”, and the hybrid electronic control unit 50 that executes the process of calculating the storage ratio SOC based on the charge / discharge current for charging / discharging the battery 48 is “ Corresponding to “storage ratio detection means”, navigation system 60 corresponds to “navigation system”, outside air temperature sensor 64 corresponds to “temperature sensor”, and the required storage ratio for starting is added to the required storage ratio for running. A hybrid that executes the process of step S220 of the route guidance execution drive control process routine illustrated in FIG. 3 set as the total required power storage ratio SOC1. The electronic control unit 50 corresponds to “total required power storage ratio setting means”, and the target rotational speed and target torque of the engine 32, the motor 41, so as to travel by hybrid travel or electric travel while keeping the power storage ratio SOC within the normal target SOC range. The process of setting the torque command of 42 and transmitting it to the engine electronic control unit 36 and the motor electronic control unit 46, the process of transmitting the operation stop command of the engine 32 to the engine electronic control unit 36, and the route guidance by the navigation system 60 When the outside air temperature Tat is equal to or lower than the heating request threshold Tref and the storage rate SOC of the battery 48 is less than the total required storage rate SOC1, the storage rate SOC of the battery 48 is within the normal target SOC range. Hybrid driving according to engine command power Alternatively, the target rotational speed and target torque of the engine 32 and the operation stop command of the engine 32 are transmitted to the engine electronic control unit 36 so as to travel by electric driving, and the torque commands of the motors 41 and 42 are set to control the motor electronically. The processing of steps S200, S210, and S230 of the route guidance execution drive control processing routine illustrated in FIG. 3 transmitted to the unit 46, the outside air temperature Tatm is equal to or less than the heating request threshold Tref, and the power storage rate SOC is the total required power storage rate SOC1. When it is above, the hybrid 32 transmits the operation stop command of the engine 32 to the engine electronic control unit 36 so as to travel by electric driving, and sets the torque command of the motors 41 and 42 and transmits it to the motor electronic control unit 46. Target rotational speed and target of electronic control unit 50 and engine 32 Electronic control unit 36 for controlling the switching of the inverters 43 and 44 so that the engine electronic control unit 36 for controlling the engine 32 and the motors 41 and 42 are driven by the torque command based on the torque and the operation stop command for the engine 32 The unit 46 corresponds to “control means”.

  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 hybrid vehicle, 22 drive shaft, 24 differential gear, 26a, 26b drive wheel, 32 engine, 33 temperature sensor, 34 crankshaft, 36 engine electronic control unit, 38 planetary gear, 41, 42 motor, 43, 44 inverter, 46 Electronic control unit for motor, 48 battery, 49 temperature sensor, 50 electronic control unit for hybrid, 52 shift position sensor, 54 accelerator pedal position sensor, 56 brake pedal position sensor, 58 vehicle speed sensor, 60 navigation system, 62 heating device, 64 Outside temperature sensor.

Claims (1)

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, a battery capable of exchanging electric power with the generator and the electric motor, a heating device for heating a passenger compartment using the internal combustion engine as a heat source, and the battery Storage ratio detecting means for detecting a storage ratio as a ratio of the storage capacity stored in the battery to the total capacity, and intermittent operation of the internal combustion engine so that the detected storage ratio falls within a predetermined target storage ratio range In a hybrid vehicle comprising: a control means for controlling the internal combustion engine, the generator, and the electric motor so as to travel with required power required for traveling with
From the current position to the set target position using the map information stored in the storage medium, the current position of the vehicle, and the target position set by the operator A navigation system for performing route guidance;
A temperature sensor for detecting the outside air temperature;
Using the map information stored in the navigation system, the current position of the vehicle, and the set target position, the setting from the current position is performed using the power from the electric motor while the operation of the internal combustion engine is stopped. The required power storage ratio for traveling required to travel to the target position is set, and is set to the required power storage ratio for starting that is predetermined as the power storage ratio of the battery required to start the internal combustion engine. A total required power storage ratio setting means for setting a total required power storage ratio by adding the required power storage ratio for traveling;
With
The control means has a heating operation request for operating the internal combustion engine so that the outside air temperature detected by the temperature sensor during route guidance by the navigation system promotes heating of the passenger compartment. The battery storage rate is within the target power storage rate range when the battery storage rate is less than the total required power storage rate when the temperature is below a predetermined temperature as an upper limit of the temperature range to be made The internal combustion engine, the generator, and the electric motor are controlled so as to travel with the required power accompanied by intermittent operation of the internal combustion engine, and when the storage ratio of the battery is equal to or greater than the total required storage ratio, the storage amount of the battery Output power from the electric motor in a state where the operation of the internal combustion engine is stopped regardless of whether or not the electric power is within the target power storage ratio range. The hybrid vehicle is a means for controlling the internal combustion engine and the generator and the electric motor so as to travel by the power demand.

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