Hybrid vehicle

By using a combination of engine, motor, power storage device and control device in hybrid vehicles, the problem of difficulty in starting the system after driving on private roads, etc. of hybrid vehicles is solved, and the normal motor driving mode is realized when the system starts.

CN119928816APending Publication Date: 2025-05-06TOYOTA JIDOSHA KK
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Patent Information

Application Number
CN202411067319.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2023-11-06
Filing Date
2024-08-06
Publication Date
2025-05-06

AI Technical Summary

Technical Problem

After the hybrid vehicle reaches the motor driving location, if the system stops when driving on a private place on a road or the like, it is difficult to determine the current location when the system starts, which may cause the engine to start.

Method used

The engine, motor, power storage device and control device are adopted to switch the operation mode of the engine and motor to control the vehicle to drive on the private land after reaching the motor driving location, etc., and the system can still drive through the motor driving mode when the system is started.

Benefits of technology

Ensure that the hybrid vehicle can drive on the private roads and other roads after reaching the motor driving location and the system stops, and the system can drive normally through the motor driving mode when the system is started, avoiding unnecessary engine starting.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a hybrid vehicle. A control device for a hybrid vehicle sets a motor travel history to be on when a location within a predetermined distance range from a motor travel location is reached and starts traveling in a motor travel mode, and performs control such that the hybrid vehicle travels in the motor travel mode when the motor travel history is on at the time of system startup.
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Description

Technical Field

[0001] The present disclosure relates to a hybrid vehicle. Background Art

[0002] Conventionally, as such a hybrid vehicle, a hybrid vehicle has been proposed that switches between a motor mode for driving with an electric motor alone, an engine mode for driving with an engine alone, and a combined mode for driving with both motors according to a mode switching vehicle speed (see, for example, Japanese Patent Application Laid-Open No. 06-187595). In this hybrid vehicle, by switching the mode and the vehicle speed for each environment such as a city, a suburb, a highway, a tunnel, etc., it is possible to drive in a manner suitable for the environment. Summary of the invention

[0003] In recent years, in order to suppress the noise around their homes, users sometimes set their homes as motor driving locations, and set a predetermined distance range of the set motor driving location as a motor driving area. In this case, the motor driving location and the motor driving area are set on the road on the map. Therefore, if the system stops after reaching the motor driving location and driving on a pass road in a private property that is not recognized as a road on the map, it will be difficult to determine the current location on the map when the system is started later, and sometimes the engine will be started just after the system is started.

[0004] The main purpose of the hybrid vehicle of the present disclosure is to be able to travel by motor running even when the system is started after the system stops while traveling on a road or the like in private land after reaching a motor running point.

[0005] The hybrid vehicle of the present disclosure adopts the following means to achieve the above-mentioned main object.

[0006] The hybrid vehicle of the present disclosure comprises:

[0007] The engine can output power for driving;

[0008] A motor capable of outputting power for driving;

[0009] a power storage device capable of exchanging electric power with the motor;

[0010] A map information storage device for storing map information; and

[0011] The control device controls the engine and the motor in a manner that the vehicle travels in the motor driving mode within a predetermined distance range from a motor driving point set on map information when switching between a motor driving mode for performing motor driving in a state where the engine is stopped and a normal driving mode for performing normal driving as needed by the power from the engine and the power from the motor,

[0012] Among them, when the control device reaches a place within a predetermined distance range from the motor driving location and starts driving through the motor driving mode, it sets the motor driving history to on, so as to control the driving through the motor driving mode when the motor driving history is on when the system is started.

[0013] The hybrid vehicle of the present disclosure includes: an engine capable of outputting power for driving; a motor capable of outputting power for driving; a power storage device capable of exchanging power with the motor; and a control device for switching between a motor driving mode in which the vehicle is driven by power from the motor while the operation of the engine is stopped and a normal driving mode in which the vehicle is driven by power from the engine and power from the motor as needed, and controlling the engine and the motor. The control device controls the vehicle to drive by the motor driving mode within a predetermined distance range from a motor driving location set on map information. At this time, when the vehicle reaches a location within a predetermined distance range from the motor driving location and starts driving by the motor driving mode, the motor driving history is set to on. In addition, the control device controls the vehicle to drive by the motor driving mode when the motor driving history is on at the time of system startup. As a result, the vehicle can also drive by the motor driving when the system is started after the vehicle reaches the motor driving location and drives on a road or the like in a private land and stops the system.

[0014] In the hybrid vehicle of the present disclosure, the control device may also store the travel distance of a predetermined period after reaching the motor travel location, and control the vehicle to travel at least the travel distance through the motor travel mode from the location where the system was started when the motor travel history is turned on at system startup. Thus, even if the travel distance after reaching the motor travel location becomes longer, the vehicle can travel through the motor travel mode after the subsequent system startup until at least the travel distance is traveled. Here, the predetermined period includes the period from the start of the motor travel mode after reaching the motor travel location to the system being turned off, and the period from the start of off-road (non-highway road, etc.) travel after reaching the motor travel location to the system being turned off.

[0015] In the hybrid vehicle of the present disclosure, the control device may also turn off the motor driving history when the motor driving history is on and when a predetermined cancellation condition is satisfied, even if the vehicle has not traveled a distance greater than the driving distance in the motor driving mode, to terminate the motor driving mode. In this case, the predetermined cancellation condition may also include at least one of a condition that the vehicle has passed the motor driving location and a condition that the driver instructs to terminate the motor driving mode. The condition that the driver instructs to terminate the motor driving mode includes, for example, a case where the driver operates to cancel the motor driving mode using a switch operation or a remote operation.

[0016] In the hybrid vehicle of the present disclosure, the control device may stop the motor driving mode while the motor driving history is maintained on, and restart the motor driving mode when the vehicle speed is lower than the predetermined speed or the power storage ratio of the power storage device is higher than the predetermined ratio when the motor driving mode is implemented with the motor driving history being on. That is, when the motor driving history is on, when the vehicle speed is higher than the predetermined speed or the power storage ratio of the power storage device is lower than the predetermined ratio, the motor driving mode is temporarily stopped, and then, when the vehicle speed is lower than the predetermined speed or the power storage ratio of the power storage device is higher than the predetermined ratio, the motor driving mode is restarted. Thus, even if the motor driving mode is temporarily stopped due to the establishment of a condition that the motor driving mode cannot be maintained when the motor driving history is on, the motor driving mode can be resumed when the motor driving mode is restored to a state where the motor driving mode can be performed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Features, advantages, and technical and industrial significance of exemplary embodiments of the present invention will be described below with reference to the accompanying drawings, in which like reference numerals represent like elements, and in which:

[0018] Figure 1 This is a block diagram showing an example of a hybrid vehicle 20 as one embodiment of the present disclosure as a module, with the hybrid ECU 50 as the center.

[0019] Figure 2 : is a flowchart showing an example of the process executed by the hybrid ECU 50 during driving.

[0020] Figure 3 1 is a flowchart showing an example of a system startup process executed by the hybrid ECU 50 .

[0021] Figure 4 This is an explanatory diagram showing an example of how the travel mode is set when the home is set as the motor travel location. DETAILED DESCRIPTION

[0022] Next, a mode (embodiment) for carrying out the present disclosure will be described. Figure 1This is a block diagram showing an example of a hybrid vehicle 20 as an embodiment of the present disclosure, with a hybrid electronic control unit (hereinafter referred to as hybrid ECU) 50 as the center, as a module. The hybrid vehicle 20 of the embodiment is equipped with an engine EG and a motor MG as power sources as shown in the figure. The hybrid vehicle 20 of the embodiment has, as driving modes, a motor driving mode in which the vehicle is driven by the power from the motor MG while the operation of the engine EG is stopped, and a normal driving mode in which the vehicle is driven by the power from the engine EG and the power from the motor MG as needed while the engine EG is operated. In the normal driving mode, there is a CD mode (charge depletion mode) in which electric driving is prioritized in a manner that reduces the storage ratio SOC of the battery 40, and a CS mode (charge sustaining mode) in which electric driving and hybrid driving are used in a manner that maintains the storage ratio SOC of the battery 40 at a target ratio.

[0023] The hybrid vehicle 20 of the embodiment includes, in addition to the power source, an ignition switch 21, a GPS (Global Positioning System, Global Positioning Satellite) 22, a vehicle-mounted camera 24, a millimeter-wave radar 26, an acceleration sensor 28, a vehicle speed sensor 30, an accelerator sensor 32, a brake sensor 34, a mode switching switch 36, a battery actuator 38, a battery 40, an air conditioner electronic control unit (hereinafter referred to as air conditioner ECU) 42, an air conditioner compressor 44, a hybrid ECU 50, an accelerator actuator 60, a brake actuator 62, a brake device 64, a display device 66, a driving status indicator 67, a meter 68, a DCM (Data Communication Module) 70, a navigation system 80, and the like.

[0024] The GPS 22 is a device for detecting the position of the vehicle based on signals transmitted from a plurality of GPS satellites. The vehicle-mounted camera 24 is a camera for photographing the surroundings of the vehicle, for example, a front camera for photographing the front of the vehicle, a rear camera for photographing the rear of the vehicle, etc. The millimeter wave radar 26 detects the inter-vehicle distance and relative speed between the vehicle in front, or the inter-vehicle distance and relative speed between the vehicle in front, or the vehicle behind.

[0025] The acceleration sensor 28 is a sensor that detects, for example, the acceleration in the front-rear direction of the vehicle, or the acceleration in the left-right direction (lateral direction) of the vehicle. The vehicle speed sensor 30 detects the vehicle speed based on the wheel speed, etc. The accelerator sensor 32 detects the accelerator opening corresponding to the amount of depression of the driver's accelerator pedal, etc. The brake sensor 34 detects the brake position, etc., which is the amount of depression of the driver's brake pedal. The mode switching switch 36 is a switch that is arranged near the steering wheel of the driver's seat and is used to switch between the motor driving mode and the normal driving mode.

[0026] The battery actuator 38 detects the state of the battery 40, such as the voltage between the terminals, the charge and discharge current, and the battery temperature, and manages the battery 40 based on these. The battery actuator 38 calculates the storage ratio SOC, which is the ratio of the remaining storage capacity to the total storage capacity, based on the charge and discharge current, or calculates the maximum allowable output power (output limit Wout) that can be output from the battery 40 and the maximum allowable input power (input limit Win) that can be input to the battery 40 based on the storage ratio SOC, the battery temperature, etc. The battery 40 is configured as a rechargeable secondary battery, and for example, a lithium ion battery, a nickel-hydrogen battery, a lead storage battery, etc. can be used.

[0027] Although not shown in the figure, the air conditioner ECU 42 is configured as a microcomputer centered on a CPU, and in addition to the CPU, it also includes a ROM, a RAM, a flash memory, an input port, an output port, a communication port, etc. The air conditioner ECU 42 is embedded in an air conditioner that performs air conditioning on a passenger compartment, and drives and controls an air conditioner compressor 44 in the air conditioner so that the temperature of the passenger compartment becomes a set temperature.

[0028] The engine EG is configured as an internal combustion engine, for example. The motor MG is configured as an electric motor that also functions as a generator, for example, such as a synchronous motor generator. Although not shown in the figure, the motor MG is connected to the battery 40 via an inverter, and can output driving force using the power supplied from the battery 40, or charge the battery 40 with the generated power.

[0029] Although not shown in the figure, the hybrid ECU 50 is a microcomputer centered around a CPU, and in addition to the CPU, it also includes a ROM, a RAM, a flash memory, an input port, an output port, a communication port, etc. The hybrid ECU 50 sets the driving mode, or sets the target operating point (target speed, target torque) of the engine EG and the torque command of the motor MG based on the set driving mode, the accelerator opening from the accelerator sensor 32, the brake position from the brake sensor 34, and the output limit and input limit from the battery actuator 38. In addition, the hybrid ECU 50 does not start when the accessory is on, but starts when the ready is on.

[0030] During motor running, the hybrid ECU 50 sets the required driving force and the required power according to the accelerator opening from the accelerator sensor 32 and the vehicle speed from the vehicle speed sensor 30, sets the torque command of the motor MG so that the required driving force and the required power are output to the vehicle, and sends the set torque command to the accelerator actuator 60. During hybrid running, the hybrid ECU 50 sets the target operating point of the engine EG and the torque command of the motor MG so that the required driving force and the required power are output to the vehicle, and sends the target operating point and the torque command to the accelerator actuator 60. In addition, when the brake pedal is depressed, the hybrid ECU 50 sets the required braking force according to the brake position from the brake sensor 34 and the vehicle speed from the vehicle speed sensor 30, sets the regenerative torque command for regenerative control of the motor MG according to the required braking force and the vehicle speed, sets the target braking force of the brake device, sends the torque command to the accelerator actuator 60, and sends the target braking force to the brake actuator 62.

[0031] The accelerator actuator 60 controls the engine EG and the motor MG by the target operating point and the torque command set by the hybrid ECU 50. The accelerator actuator 60 controls the intake air amount, fuel injection, ignition, intake valve opening and closing timing, etc. so that the engine EG is operated at the target operating point (target speed, target torque). In addition, the accelerator actuator 60 controls the switching of the switching element of the inverter for driving the motor MG so that the motor MG outputs a torque corresponding to the torque command.

[0032] The brake actuator 62 controls the brake device 64 so that the target braking force set by the hybrid ECU 50 acts on the vehicle through the brake device 64. The brake device 64 is configured as a hydraulically driven friction brake, for example.

[0033] The display device 66 is embedded in, for example, a mounting panel in front of the driver's seat, and displays various information and also functions as a touch panel. The driving state indicator 67, although not shown, has an EV indicator and an HV indicator. When the motor is running, the EV indicator is lit and the HV indicator is turned off. When the hybrid is running, the EV indicator is turned off and the HV indicator is lit. The meter 68 is embedded in, for example, a mounting panel in front of the driver's seat.

[0034] The DCM (Data Communication Module) 70 sends the information of the vehicle to the traffic information management center 100, or receives the road traffic information from the traffic information management center 100. Examples of the information of the vehicle include the location, speed, driving power, driving mode, etc. of the vehicle. Examples of the road traffic information include information related to current and future congestion, information related to the current average speed in the section on the driving route, information related to the predicted value of the future average speed, information related to traffic control, information related to the weather, information related to the road surface conditions, information related to the map, etc. The DCM 70 communicates with the traffic information management center 100 at predetermined intervals (e.g., every 30 seconds, every 1 minute, every 2 minutes, etc.).

[0035] The navigation system 80 is a system for guiding the vehicle to the set destination, and is provided with a display unit 82 and a map information database 84. The display unit 82 is a functional block having a function of displaying the route to the destination, the position of the vehicle, etc. on the display device 66 according to the map information. The navigation system 80 communicates with the traffic information management center 100 via the DCM (Data Communication Module) 70. When the destination and the via point are set, the navigation system 80 sets the route according to the information of the destination or the via point, the information of the current location (the current position of the vehicle) obtained by the GPS 22, and the information stored in the map information database 84. In addition, the navigation system 80 communicates with the traffic information management center 100 at predetermined intervals (for example, every 3 minutes, every 5 minutes, etc.) to obtain road traffic information, and guides the route according to the road traffic information. The map information stored in the map information database 84 includes not only the data as a map, but also the road slope, road type, altitude, etc. of each driving interval.

[0036] When the navigation system 80 performs route guidance, every time the road traffic information is obtained from the traffic information management center 100 (or at predetermined intervals), the load information required for traveling in each driving section is generated as pre-read information based on the information of each driving section in the driving route, the information related to the driving load, the vehicle speed, the driving power of the vehicle, the driving mode of the vehicle, etc. in the road traffic information obtained from the traffic information management center 100, and the pre-read information is sent to the hybrid ECU 50. In addition, the pre-read information also includes the information of the vehicle such as the position, speed, driving power, and driving mode of the vehicle, information related to current and future congestion, information related to the current average speed in the section on the driving route, information related to the predicted value of the future average speed, information related to traffic control, information related to weather, information related to road surface conditions, information related to maps, etc. The information related to the map also includes the area (motor driving area) determined by the municipality, etc. The navigation system 80 can also set the motor driving area by specifying an area near the home, etc., through user operation. The navigation system 80 transmits a signal to the hybrid ECU 50 indicating whether the area is a motor driving area when the vehicle is traveling.

[0037] Next, the operation of the hybrid vehicle 20 configured as above, particularly the operation when the vehicle reaches the motor travel point and the system is started thereafter, will be described. The motor travel point is a point set by a user or the like as a point to be reached by motor travel. Figure 2 is a flowchart showing an example of a process executed by the hybrid ECU 50 during driving. Figure 3 1 is a flowchart showing an example of a system startup process executed by the hybrid ECU 50 .

[0038] Figure 2 The driving process is executed after the system startup process is completed. Figure 3 The system startup processing is executed when the system is started with the ignition switch 21 turned on. The following will be described in order.

[0039] In execution Figure 2 When the hybrid ECU 50 is processing the driving, it determines whether there is a motor driving point ahead (step S100). For example, this determination can be made by determining whether a motor driving point is set before a predetermined distance (e.g., 500m, 1000m) ahead in the traveling direction. When it is determined that there is a motor driving point ahead, the process of calculating the distance De from the current position of the vehicle to the motor driving point is started (step S110).

[0040] Furthermore, it is determined whether the distance De to the motor driving location reaches the motor driving range Dref (step S120). When it is determined that the distance De to the motor driving location reaches the motor driving range Dref, the motor driving mode is set to the driving mode and the motor driving is started (step S130), and the motor driving history is started (step S140).

[0041] Next, it is determined whether the motor driving location has been reached (step S150). When it is determined that the motor driving location has been reached, the off-road driving distance calculation and storage update of the off-road driving distance on off-road roads such as access roads within private land that are not recognized as roads in the map information are started (step S160).

[0042] Next, it is determined whether a cancellation condition for closing the motor driving history that is turned on or resetting the off-road driving distance to a value of 0 is satisfied (step S170). When it is determined that the cancellation condition is satisfied, the motor driving history is closed, the off-road driving distance is reset to a value of 0 (step S180), and the motor driving mode is stopped and set to the normal driving mode (step S185). Examples of the cancellation condition include a condition that the motor driving location has been passed, and when the driver operates the mode switching switch 36 or performs a remote operation to stop the motor driving. In addition, as a condition that the motor driving location has been passed, a condition that a predetermined distance (e.g., 50 m, 100 m) has been traveled after passing the motor driving location can be used.

[0043] Then, it is determined whether the ignition switch 21 is turned off (IG is turned off) (step S190). When it is determined that the IG is not turned off, the process returns to step S100 to determine whether there is a motor driving point ahead. When it is determined that the IG is turned off, this process is terminated. The IG is turned off in the state where the motor driving history and the off-road driving distance are stored. Therefore, when the IG is turned off after the off-road driving distance storage update is started, the storage of the motor driving history is turned on, and the driving distance from the motor driving point to the IG turned off point is stored as the off-road driving distance.

[0044] If it is determined in step S100 that there is no motor travel point ahead, the process proceeds to step S170 to determine whether a cancellation condition is satisfied.

[0045] Now, consider a case where the home is set as the motor driving location and the vehicle drives toward the home. Figure 4 shows what this situation would look like. Figure 4In the figure, the home is located in front of the vehicle on a pass (the pass shown by the dotted line in the figure) in a private property that is not identified as a road on the map. In this case, the motor driving location is set to a location Pev on the road on the map. When the vehicle is traveling on the road on the map toward the home, and the distance to the motor driving location Pev reaches a location P1 of the motor driving range Dref, the driving mode is set to the motor driving mode to start motor driving, and the motor driving history is turned on. After that, when the vehicle reaches the motor driving location Pev, the calculation of the off-road driving distance is started, and the storage and updating of the off-road driving distance is started. Then, after parking in the parking space of the home, the IG is turned off. Figure 4 When the vehicle passes the motor driving location Pev and drives on the access road in the private land with the dotted line and parks in the parking space at home with the IG turned off, the motor driving history is turned on and stored, and the distance of the access road with the dotted line is stored as the off-road driving distance.

[0046] Consider a case where the home is set as the motor travel location but the vehicle passes through the home. In this case as well, when the vehicle reaches the location P1 where the distance to the motor travel location Pev reaches the motor travel range Dref, the travel mode is set to the motor travel mode, the motor travel is started, and the motor travel history is turned on. In addition, when the vehicle reaches the motor travel location Pev, the calculation of the off-road travel distance is started, and the storage and updating of the off-road travel distance are started. After that, when the vehicle reaches the location P2, the cancellation condition is satisfied, the motor travel history is turned off, and the off-road travel distance is reset to a value of 0.

[0047] Next, explain Figure 3 When executing the system startup process, the hybrid ECU 50 first determines whether the motor running history is stored (step S200). If it is determined that the motor running history is not stored, the normal system startup process is performed (step S210), and the present process ends.

[0048] When it is determined in step S200 that the motor travel history is stored, the motor travel mode is set and the motor travel is started (step S220). Then, basically, the off-road travel distance is waited to be traveled (step S270), the motor travel history is closed, and the off-road travel distance is reset to a value of 0 (step S280), and this process is terminated. Until the off-road travel distance is traveled, it is repeatedly determined whether the condition for temporarily stopping the motor travel (temporary stop condition) is satisfied (step S230), and when it is determined that the temporary stop condition is satisfied, the motor travel mode is released (step S240), and it is determined whether the temporary stop condition is released (step S250), and when it is determined that the temporary stop condition is released, the motor travel mode is restored (step S260). As the temporary stop condition, the condition that the vehicle speed V becomes higher than the predetermined vehicle speed, the condition that the storage ratio SOC of the battery 40 is lower than the predetermined storage ratio (for example, 5%, 10%, etc.) and the like can be cited. In addition, in step S230, even if the temporary stop condition is satisfied, the motor travel history is not closed.

[0049] Consider Figure 4 When the IG is turned on at home. The IG is turned on while the motor driving history is on, so the driving mode is set to the motor driving mode, and the vehicle is driven by motor driving. In addition, the motor driving mode is continued until the distance of the road in the private land indicated by the dotted line in the figure is driven as the off-road driving distance, so the vehicle is driven by motor driving to the motor driving point Pev. After that, when the cancellation condition is met, the motor driving history is turned off, and the off-road driving distance is reset to a value of 0, and the vehicle is driven by the normal driving mode.

[0050] In the hybrid vehicle 20 of the embodiment described above, when the vehicle reaches a location within a predetermined distance from the motor driving point and starts driving in the motor driving mode, the motor driving history is set to on. Thereafter, when the motor driving history is on at the time of system startup, the vehicle is driven in the motor driving mode. Therefore, even after reaching the motor driving point and driving on a road or the like within a private property and stopping the system, the vehicle can be driven by motor driving when the system is started.

[0051] In the hybrid vehicle 20 of the embodiment, when the vehicle travels on an off-road road that is not recognized as a road on the map after reaching the motor travel location, the travel distance on the off-road road is stored as the off-road travel distance, and then when the motor travel history is turned on at the system start-up, the vehicle continues to travel on the off-road road until the off-road travel distance is traveled from the system start-up location. Thus, even if the travel distance on the off-road road after reaching the motor travel location becomes longer, the vehicle can travel on the off-road road until the travel distance on the off-road road is traveled after the system is started up.

[0052] In the hybrid vehicle 20 of the embodiment, when a cancellation condition is satisfied, such as a condition that the motor driving point has been passed, a condition that the driver has operated the mode switching switch 36 or a remote operation to stop the motor driving, the motor driving history is turned off and the off-road driving distance is reset to a value of 0. This can prevent the motor driving history from being turned on and the off-road driving distance from being reset from continuing.

[0053] In the hybrid vehicle 20 of the embodiment, when the motor running is being performed after the system is started and the vehicle speed V becomes equal to or higher than the predetermined vehicle speed and the power storage ratio SOC of the battery 40 is less than the predetermined power storage ratio, the motor running is temporarily canceled when the temporary stop condition is canceled, and the motor running is resumed when the temporary stop condition is canceled. Thus, the motor running can be further performed.

[0054] In the hybrid vehicle 20 of the embodiment, the case where the home is set as the motor running point is described, but the same is applicable to the case where a place other than the home is set as the motor running point.

[0055] The correspondence between the main elements of the embodiment and the main elements of the invention described in the summary of the invention is described. In the embodiment, the engine EG corresponds to the "engine", the motor MG corresponds to the "motor", the battery 40 corresponds to the "power storage device", the navigation system 80 having the map information database 84 corresponds to the "map information storage device", and the hybrid electronic control unit 50 corresponds to the "control device".

[0056] In addition, the correspondence between the main elements of the embodiment and the main elements of the invention recorded in the content of the invention is an example for specifically explaining the specific embodiment recorded in the content of the invention in the embodiment, and therefore does not limit the elements of the invention recorded in the content of the invention. That is, the interpretation of the invention recorded in the content of the invention should be based on the description of the content of the invention, and the embodiment is only a specific example of the invention recorded in the content of the invention.

[0057] As mentioned above, although this disclosure was described using the embodiment, this disclosure is not limited to such embodiment, and it is needless to say that this disclosure can be implemented in various forms within the scope not departing from the gist of this disclosure.

[0058] The present disclosure can be used in the hybrid vehicle manufacturing industry and the like.

Claims

1. A hybrid vehicle, characterized in that: have: The engine can output power for driving; A motor capable of outputting power for driving; a power storage device capable of exchanging electric power with the motor; A map information storage device for storing map information; as well as A control device controls the engine and the motor by switching between a motor driving mode and a normal driving mode, so as to drive the vehicle in the motor driving mode within a predetermined distance range from a motor driving location set on map information, wherein the motor driving mode is a mode of motor driving in which the vehicle drives by power from the motor while stopping the operation of the engine, and the normal driving mode is a mode of normal driving in which the vehicle drives by power from the engine and power from the motor as needed, in, The control device sets the motor driving history to on when the vehicle reaches a location within a predetermined distance from the motor driving location and starts driving in the motor driving mode, The control device controls the vehicle to travel in the motor travel mode when the motor travel history is on at system startup.

2. The hybrid vehicle according to claim 1, wherein: The control device stores a travel distance for a predetermined period after reaching the motor travel location. The control device controls so that when the motor driving history is on at the time of system activation, at least the driving distance is traveled in the motor driving mode from the point at which the system is activated.

3. The hybrid vehicle according to claim 1 or 2, wherein: When a predetermined cancellation condition is satisfied when the motor driving history is turned on, the control device turns off the motor driving history and ends the motor driving mode even if the motor driving mode has not been driven for a distance greater than the driving distance in the motor driving mode.

4. The hybrid vehicle according to claim 3, wherein: The predetermined cancellation condition includes at least one of a condition that a determination is made that the motor driving point has been passed and a condition that a driver instructs a request to end the motor driving mode.

5. The hybrid vehicle according to claim 1 or 2, wherein: The control device stops the motor driving mode while maintaining the motor driving history on when at least one of the following conditions holds true: the vehicle speed becomes greater than a predetermined speed when the motor driving mode is implemented with the motor driving history on, or the power storage ratio of the power storage device becomes less than a predetermined ratio; and then starts the motor driving mode again when the vehicle speed becomes less than the predetermined speed when the motor driving history is on, or the power storage ratio of the power storage device becomes greater than a predetermined ratio.

Citation Information

Patent Citations

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