JP2009073390A - Vehicle controller - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To give priority to good mileage during a cruise control travel, in a vehicle controller. <P>SOLUTION: This vehicle controller 20 has a cruise switch I/F 124, an economy mode switch I/F 128, a succeeding vehicle sensor I/F 132, an electrical storage state acquisition part I/F 136, a storage part 114, and a CPU 100. The storage part 114 stores relation between a fuel efficient cruise control travel program executed in the CPU 100 and maximum acceleration to a target vehicle speed of one's own vehicle. The CPU 100 includes a cruise travel control module 102, a fuel efficient travel instruction acquisition module 104, a maximum acceleration reduction module 106, a succeeding vehicle information acquisition module 108, an electrical storage state information acquisition module 110, and a drive source changeover module 112. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a vehicle control device, and more particularly, to a vehicle control device that performs cruise control traveling that performs constant speed traveling or follow-up traveling by defining an upper limit of acceleration with respect to a target vehicle speed.

  In cruise control driving in which an upper limit of acceleration with respect to the target vehicle speed is specified to perform constant speed driving or following driving, it may be desired to drive with low fuel consumption. Therefore, in Patent Document 1, in an automatic constant speed traveling device, an actual vehicle speed detecting unit that detects the actual vehicle speed of the vehicle, and acceleration when the vehicle is accelerated are stored, and at the time when the vehicle speed setting switch is operated. In a cruise control traveling device that includes a storage unit that stores an actual vehicle speed as a set vehicle speed, and a control unit, and performs constant speed traveling control by controlling with acceleration so that a difference between the actual vehicle speed and the set vehicle speed becomes zero In addition, there is disclosed a vehicle having a low fuel consumption travel mode selection switch and a normal fuel consumption travel mode selection switch. Here, in the normal fuel consumption travel mode, the throttle opening is accelerated in the fully open state in order to bring the actual vehicle speed closer to the set vehicle speed, whereas in the fuel efficiency travel mode, the throttle opening is performed so that the acceleration state with the minimum fuel consumption is achieved. It is stated that the speed is gradually opened to bring the actual vehicle speed closer to the set vehicle speed.

  Further, in Patent Document 2, in the cruise control device, a control command for the throttle opening is output on condition that the deviation between the target vehicle speed and the current vehicle speed exceeds a predetermined deviation allowable value. A cruise control device having a throttle control means for controlling the vehicle so as to match the target vehicle speed, a mode setting means for setting a low fuel consumption mode by a driver, a rotation speed detection means for detecting an engine speed, And an engine speed upper limit value setting means for setting the engine speed upper limit value to a different value depending on whether or not the low fuel consumption mode is selected, and the throttle control means controls the engine speed not to exceed the upper limit value. What outputs a command is disclosed. Here, when the engine speed is smaller than a predetermined upper limit value, the throttle opening is increased. When the engine speed exceeds the upper limit value, the automatic transmission has the highest gear. It is determined whether or not the gear is the highest gear, and if the gear is not the highest gear, the gear is shifted up, and if it is the highest gear, the gear is set to neutral.

Japanese Utility Model Publication No. 63-85533 JP 2003-343305 A

  As described above, according to the method of Patent Document 1, low fuel consumption is realized by gradually opening the throttle opening to bring the actual vehicle speed closer to the set vehicle speed.

  Further, according to the method of Patent Document 2, a rotation speed upper limit value is set, and when the rotation speed is less than or equal to the upper limit value, the throttle opening is increased, and when the rotation speed is greater than or equal to the upper limit value, the gear position is increased. The fuel efficiency has been reduced by shifting up.

  An object of the present invention is to provide a vehicle control device that can prioritize low fuel consumption during cruise control travel.

  A vehicle control device according to the present invention includes a cruise control travel unit that performs constant speed travel or follow-up travel by defining an upper limit of acceleration with respect to a target vehicle speed, and a low fuel consumption travel instruction acquisition unit that acquires a low fuel consumption travel instruction from a user. And an acceleration reduction means for reducing the maximum acceleration with respect to the target vehicle speed in the cruise control travel as compared to when the low fuel consumption travel instruction is not acquired when the low fuel consumption travel instruction is acquired.

  Further, the vehicle control device includes a detecting unit that detects the presence or absence of a following vehicle, and the acceleration reducing unit detects the following vehicle when the following vehicle is detected when the low fuel consumption travel instruction is acquired. It is preferable to reduce the maximum acceleration with respect to the target vehicle speed in the cruise control travel as compared to when it is not performed.

  In addition, the vehicle control device includes a power storage state acquisition unit that acquires a power storage state of a power storage device that is a driving source of the rotating electrical machine, and the acceleration reduction unit has a vehicle speed that is less than or equal to a vehicle speed that can be traveled by the rotating electrical machine. When the value indicating the state is within a predetermined range, it is preferable to reduce the maximum acceleration relative to the target vehicle speed to the maximum acceleration that can be driven by the rotating electrical machine.

  With the above configuration, the vehicle control device in the cruise control traveling, the fuel-efficient traveling instruction acquisition means for acquiring the fuel-efficient traveling instruction from the user, and when the fuel-efficient traveling instruction is not acquired when the fuel-efficient traveling instruction is acquired In comparison, acceleration reduction means for reducing the maximum acceleration relative to the target vehicle speed is provided. Therefore, in the cruise control travel, when the fuel efficiency travel instruction is acquired, the fuel efficiency can be made lower than when the fuel efficiency travel instruction is not acquired.

  Embodiments according to the present invention will be described below in detail with reference to the drawings. In the following, the control target of the vehicle control device will be described as a hybrid vehicle using an engine and a rotating electric machine as a driving source. However, a gasoline vehicle using only the engine as a driving source may be used, and only the rotating electric machine is used as a driving source. It may be an electric vehicle.

  FIG. 1 is a diagram showing a vehicle control system 10 for a hybrid vehicle. The vehicle control system 10 includes an engine 118, a rotating electric machine 120, an ECU (Electronic Control Unit) 119, a cruise switch 122, an eco mode switch 126, a following vehicle sensor 130, and a storage state acquisition, which are driving sources of the hybrid vehicle. The unit 134 and the vehicle control device 20 are configured.

  The engine 118 is an internal combustion engine that uses gasoline as fuel, and is one of the drive sources for running the hybrid vehicle. The rotating electrical machine 120 has a function as one of driving sources for running the hybrid vehicle as a motor and a function as a generator.

  The ECU 119 is an electronic control unit that has a function of controlling the overall operation of the hybrid vehicle, and in particular, a function of controlling the engine 118 and the rotating electrical machine 120 that are driving sources of the hybrid vehicle.

  The cruise switch 122 is a switch arranged at an appropriate location such as near the steering handle of the driver's seat, and is a switch for giving a cruise control traveling instruction to the own vehicle when the user performs an ON operation. Note that cruise control travel includes constant speed travel and follow-up travel. The former is traveling that maintains a predetermined vehicle speed. For example, a target vehicle speed is set by a user or an ECU, and acceleration or deceleration is automatically performed on the target vehicle speed to perform constant speed traveling. Show. The latter is traveling that maintains an inter-vehicle distance from a preceding vehicle or the like. For example, the target vehicle speed is calculated based on the inter-vehicle distance from the preceding vehicle and the current vehicle speed, and the target vehicle speed is automatically accelerated or decelerated. Indicates that the vehicle is to follow. Hereinafter, unless otherwise specified, cruise control travel includes both constant speed travel and follow-up travel.

  The eco mode switch 126 is a switch arranged at an appropriate place such as the vicinity of the steering wheel of the driver's seat, like the cruise switch 122. The eco mode switch 126 is a dedicated switch for giving a low fuel consumption traveling instruction to the host vehicle when the user performs an ON operation when the cruise control traveling is performed. Note that the eco mode switch 126 can also be used as another switch when there is another switch for instructing low fuel consumption traveling during normal traveling. For example, when the user's cruise switch 122 is operated and the switch is operated, a low fuel consumption traveling instruction in cruise control traveling can be given.

  The following vehicle sensor 130 is a sensor that acquires information as to whether or not another vehicle exists within a predetermined distance behind the host vehicle driven by the user. The following vehicle sensor 130 is configured using, for example, an infrared radar. Further, when there is another vehicle behind the host vehicle, the following vehicle sensor 130 acquires information on the inter-vehicle distance.

  The power storage state acquisition unit 134 has a function of acquiring a value indicating a power storage state (State Of Charge: SOC) of a power storage device that supplies power to the rotating electrical machine 120. The storage state is calculated based on the storage amount, temperature, and the like of the storage device.

  The vehicle control device 20 has a function of defining an upper limit of acceleration with respect to the target vehicle speed to the ECU 119 in cruise control traveling and instructing acceleration control based on the definition. The vehicle control device 20 includes a cruise switch I / F 124, an eco mode switch I / F 128, a following vehicle sensor I / F 132, a storage state acquisition unit I / F 136, a storage unit 114, and a CPU 100. The Each element is connected to each other through an internal bus. Moreover, the vehicle control apparatus 20 and ECU119 are connected so that communication is possible mutually.

  The vehicle control device 20 can use a computer suitable for mounting on a vehicle. In addition, a combination of a plurality of electric circuits such as a drive circuit and a logic circuit may be used. Further, the function of the vehicle control device 20 may be a part of the function of another control device mounted on the hybrid vehicle. For example, it can be a part of the function of the ECU 119.

  The cruise switch I / F 124 is an interface circuit connected to the cruise switch 122 that acquires a cruise control travel instruction from the user.

  The eco mode switch I / F 128 is an interface circuit connected to the eco mode switch 126 that obtains a user's low fuel consumption travel instruction.

  The following vehicle sensor I / F 132 is an interface circuit connected to the following vehicle sensor I / F 132 that acquires information on whether or not there is a following vehicle for a predetermined distance behind the host vehicle.

  The storage state acquisition unit I / F 136 is an interface circuit connected to the storage state acquisition unit 136 that acquires a value indicating the storage state of the storage device.

  The memory | storage part 114 is a memory | storage device which memorize | stores the relationship between the low-fuel-consumption cruise control driving | running | working program run in CPU100, and the maximum acceleration with respect to the target vehicle speed of the own vehicle. The relationship of the maximum acceleration with respect to the target vehicle speed may be stored using a table or may be stored using a function. Further, as shown in FIG. 1, a plurality of maps can be stored and a map corresponding to the state of the vehicle or the like can be selected and used. Here, in order to describe the case where the first maximum acceleration map 47 is selected and used from a plurality of maps, the second maximum acceleration map 48 and the third maximum acceleration map 49 will be described in detail in other embodiments. Give an explanation.

  FIG. 2 is a diagram showing the first maximum acceleration map 47. In the first maximum acceleration map 47, the horizontal axis is the vehicle speed of the host vehicle, and the vertical axis is the target maximum acceleration of the host vehicle. The first maximum acceleration map 47 stores two types of characteristic curves, a normal mode characteristic curve 50 and a first eco mode characteristic curve 52.

  The normal mode characteristic curve 50 is a curve showing the relationship between the target maximum acceleration in the normal mode without a low fuel consumption traveling instruction during cruise control traveling and suppressing the target maximum acceleration as the vehicle speed increases.

  The first eco mode characteristic curve 52 is a curve showing a relationship that suppresses the target maximum acceleration as the vehicle speed increases similarly to the normal mode characteristic curve 50, and further restricts the target maximum acceleration compared to the normal mode characteristic curve 50. 5 is a characteristic curve for low fuel consumption travel showing the relationship.

  Returning to FIG. 1 again, the CPU 100 controls the cruise travel control module 102, the low fuel consumption travel instruction acquisition module 104, the maximum acceleration reduction module 106, the following vehicle information acquisition module 108, the storage state information acquisition module 110, and the drive. And a source switching module 112. Each of these functions can be realized by executing software, and specifically, can be realized by executing a low fuel consumption cruise control traveling program stored in the storage unit 114. Further, part or all of the functions may be realized by hardware. The following vehicle information acquisition module 108, the storage state information acquisition module 110, and the drive source switching module 112 will be described in detail when the other embodiments are described.

  The cruise travel control module 102 acquires the operation state of the cruise switch 122 from the cruise switch 122 via the cruise switch I / F 124, and determines whether or not there is an instruction for cruise control travel by turning on the cruise switch 122. It has a function. When there is an instruction for cruise control travel, the cruise travel control module 102 has a function of giving an instruction to the ECU 119 so that the host vehicle performs cruise control travel. The cruise travel control module 102 has a function of delivering cruise control travel instruction information to the maximum acceleration reduction module 106.

  The low fuel consumption travel instruction acquisition module 104 acquires the operation state of the eco mode switch 126 from the eco mode switch 126 via the eco mode switch I / F 128. And it has a function which judges whether there exists the instruction | indication of the low fuel consumption driving | running | working by ON operation of the eco mode switch 126. FIG. The low fuel consumption travel instruction acquisition module 104 has a function of delivering low fuel consumption travel instruction information to the maximum acceleration reduction module 106.

  The maximum acceleration reduction module 106 receives an instruction for cruise control traveling, an instruction for low fuel consumption traveling, etc. as described above, acquires a suitable characteristic curve from the first maximum acceleration map 47 stored in the storage unit 114, It has a function of giving an instruction to the ECU 119 so as to perform acceleration control based on the characteristic curve.

  The operation of the above configuration will be described with reference to the drawings. FIG. 3 is a flowchart showing each procedure for performing low fuel consumption control during cruise control travel in the vehicle control device 20. Each procedure corresponds to a procedure of each process of the low fuel consumption cruise control travel program. In addition, it demonstrates using the code | symbol of FIG. 1, FIG.

  When the fuel-efficient cruise control travel program is executed, first, the operation state of the cruise switch 122 is acquired from the cruise switch 122 via the cruise switch I / F 124. Then, it is determined whether or not there is an instruction for cruise control traveling by turning on the cruise switch 122 (S8).

  If it is determined that the cruise switch 122 is not turned on and there is no instruction for cruise control travel, the ECU 119 is instructed to perform normal travel (S10).

  If it is determined that the cruise switch 122 is turned on and there is an instruction for cruise control travel, the ECU 119 is instructed to perform cruise control travel (S11). After S11, the process proceeds to S12. Note that the functions of S8, S10, and S11 are executed by the function of the cruise travel control module 102 of the CPU 100.

  The operating state of the eco mode switch 126 is acquired from the eco mode switch 126 via the eco mode switch I / F 128. Then, it is determined whether or not there is an instruction for low fuel consumption traveling by turning on the eco mode switch 126 (S12). This function is executed by the function of the low fuel consumption travel instruction acquisition module 104 of the CPU 100.

  If it is determined that the eco-mode switch 126 is not turned on and there is no instruction for low fuel consumption travel, a normal mode characteristic curve 50 for performing normal mode travel during cruise control travel is acquired from the storage unit 114. Then, the ECU 119 is instructed to perform acceleration control based on the normal mode characteristic curve 50 for the host vehicle (S14).

  If it is determined that the eco mode switch 126 is turned on and there is an instruction for low fuel consumption travel, the first eco mode characteristic curve 52 for performing low fuel consumption travel during cruise control travel is acquired from the storage unit 114. Then, the ECU 119 is instructed to perform acceleration control based on the first eco mode characteristic curve 52 for the host vehicle (S16). The functions of S14 and S16 are executed by the function of the maximum acceleration reduction module 106 of the CPU 100. After S10, S14, and S16, program end processing is performed.

  Accordingly, the first eco mode characteristic curve 52 for performing low fuel consumption traveling in cruise control traveling has a lower target maximum acceleration than the normal mode characteristic curve 50 for performing normal mode traveling. You can do cruise control.

  Although the first embodiment has been described as not considering the presence of the following vehicle traveling behind the host vehicle, the second embodiment performs vehicle control based on the presence information of the following vehicle. Here, as described above, the second maximum acceleration map 48 and the following vehicle information acquisition module 108 in the CPU 100 will be described.

  FIG. 4 is a diagram showing the second maximum acceleration map 48. Similarly to the first maximum acceleration map 47, the second maximum acceleration map 48 has the horizontal axis as the vehicle speed of the host vehicle and the vertical axis as the target maximum acceleration of the host vehicle. The second maximum acceleration map 48 stores three types of characteristic curves: a normal mode characteristic curve 50, a first eco mode characteristic curve 52, and a second eco mode characteristic curve 54. The normal mode characteristic curve 50 and the first eco mode characteristic curve 52 are the same characteristic curves as the first maximum acceleration map 47 in FIG.

  Similar to the normal mode characteristic curve 50 and the first eco mode characteristic curve 52, the second eco mode characteristic curve 54 is a characteristic curve showing a relationship that suppresses the target maximum acceleration as the vehicle speed increases. Compared to the characteristic curve 52, this is a characteristic curve for low fuel consumption travel showing a relationship in which the target maximum acceleration is further limited.

  The following vehicle information acquisition module 108 in the CPU 100 acquires the following vehicle information from the following vehicle sensor 130 via the following vehicle sensor I / F 132, and determines whether or not there is a following vehicle within a predetermined distance behind the own vehicle. Has a function to judge. The following vehicle information acquisition module 108 has a function of passing the following vehicle information to the maximum acceleration reduction module 106.

  The operation of the above configuration will be described with reference to the drawings. FIG. 5 is a flowchart showing each procedure for performing low fuel consumption control during cruise control based on the following vehicle information in the vehicle control device 20. In addition, it demonstrates using the code | symbol of FIGS.

  Similar to the procedure shown in FIG. 3, first, a low fuel consumption cruise control travel program is executed, and a procedure (S12) for determining whether or not a low fuel consumption travel is instructed is performed.

  Next, if it is determined that the eco-mode switch 126 is not turned on and there is no instruction for low fuel consumption travel, a normal mode characteristic curve 50 for performing normal mode travel during cruise control travel is acquired from the storage unit 114. . Then, the ECU 119 is instructed to perform acceleration control based on the normal mode characteristic curve 50 for the host vehicle (S14). This function is executed by the function of the maximum acceleration reduction module 106 of the CPU 100.

  If it is determined that the eco-mode switch 126 is turned on and there is an instruction for low fuel consumption driving, the following vehicle information is acquired from the following vehicle sensor 130 via the following vehicle sensor I / F 132, and It is determined whether there is a following vehicle within a predetermined distance behind (S20). This function is executed by the function of the following vehicle information acquisition module 108 of the CPU 100.

  If it is determined that the following vehicle is present at a predetermined distance, the first eco mode characteristic curve 52 for performing fuel-efficient driving during cruise control driving is acquired from the storage unit 114. Then, the ECU 119 is instructed to perform acceleration control based on the first eco mode characteristic curve 52 for the host vehicle (S22).

  If it is determined that there is no following vehicle at a predetermined distance, the second eco mode characteristic curve 54 for performing low fuel consumption traveling during cruise control traveling is acquired from the storage unit 114. Then, the ECU 119 is instructed to perform acceleration control based on the second eco mode characteristic curve 54 for the host vehicle (S24). The functions of S22 and S24 are executed by the function of the maximum acceleration reduction module 106 of the CPU 100. Note that after S10, S14, S22, and S24, the program is terminated.

  Accordingly, the second eco mode characteristic curve 54 in the case where there is no following vehicle at a predetermined distance has the target maximum acceleration reduced compared to the first eco mode characteristic curve 52 in the case where the following vehicle exists at a predetermined distance. As a result, cruise control can be performed with lower fuel consumption.

  In the first and second embodiments, the power storage state of the power storage device of the hybrid vehicle is not considered. However, in the third embodiment, vehicle control is performed based on the power storage state of the power storage device. As described above, here, the third maximum acceleration map 49, the storage state information acquisition module 110 in the CPU 100, and the drive source switching module 112 will be described.

  FIG. 6 is a diagram showing a third maximum acceleration map 49. Similar to the first maximum acceleration map 47 and the second maximum acceleration map 48, the third maximum acceleration map 49 has the horizontal axis as the vehicle speed of the host vehicle and the vertical axis as the target maximum acceleration of the host vehicle. The third maximum acceleration map 49 stores three types of characteristic curves, a normal mode characteristic curve 50, a first eco mode characteristic curve 52, and a third eco mode characteristic curve 56. Since the normal mode characteristic curve 50 and the first eco mode characteristic curve 52 are the same characteristic curves as the first maximum acceleration map 47 and the second maximum acceleration map 48, detailed description thereof will be omitted. Note that the rotating electric machine travelable range 58 shown in the third maximum acceleration map 49 is a range in which the vehicle speed can be traveled only by the rotating electrical machine 120 when the vehicle speed of the vehicle is below a certain level.

  The third eco mode characteristic curve 56 is a characteristic curve showing a relationship that suppresses the target maximum acceleration as the vehicle speed increases, similarly to the normal mode characteristic curve 50 and the first eco mode characteristic curve 52. The third eco-mode characteristic curve 56 further limits the target maximum acceleration as compared with the first eco-mode characteristic curve 52, and is equal to or less than the vehicle speed that can be traveled only by the rotating electrical machine 120 (range in which the rotating electrical machine can travel). 58) is a characteristic curve for low fuel consumption traveling showing a relationship reduced to a target maximum acceleration that can be traveled only by the rotating electrical machine 120.

  The storage state information acquisition module 110 acquires a value indicating the storage state of the power storage device from the storage state acquisition unit 134 via the storage state acquisition unit I / F 136. Then, it has a function of determining whether or not the value of the storage state is within a predetermined range, and transferring the result to the maximum acceleration reduction module 106 and the drive source switching module 112.

  The drive source switching module 112 stops the engine 118 in a rotating electric machine travelable range in which the value indicating the power storage state is within a predetermined range and the own vehicle can run only by the rotating electric machine 120. In addition, the ECU 120 has a function of giving a command to the ECU 120 so as to perform control driven only by the rotating electrical machine 120.

  The operation of the above configuration will be described with reference to the drawings. FIG. 7 is a flowchart showing each procedure for performing low fuel consumption control at the time of cruise control traveling based on the power storage state of the power storage device in the vehicle control device 20. In addition, it demonstrates using the code | symbol of FIGS.

  Similar to the procedure shown in FIG. 3, first, a low fuel consumption cruise control travel program is executed, and a procedure (S12) for determining whether or not a low fuel consumption travel is instructed is performed.

  Next, if it is determined that the eco-mode switch 126 is not turned on and there is no instruction for low fuel consumption travel, a normal mode characteristic curve 50 for performing normal mode travel during cruise control travel is acquired. Then, the ECU 119 is instructed to perform acceleration control based on the normal mode characteristic curve 50 for the host vehicle (S14). This function is executed by the function of the maximum acceleration reduction module 106 of the CPU 100.

  If it is determined that the eco-mode switch 126 is turned on and there is an instruction for low fuel consumption travel, a value indicating the storage state of the power storage device is acquired from the storage state acquisition unit 134 via the storage state acquisition unit I / F 136. . Then, it is determined whether or not the value of the storage state is within a predetermined range (S30). This function is executed by the function of the storage state information acquisition module 110 of the CPU 100.

  If it is determined that the value indicating the storage state is not within the predetermined range, the first eco-mode characteristic curve 52 for performing low fuel consumption traveling during cruise control traveling is acquired from the storage unit 114. Then, the ECU 119 is instructed to perform acceleration control based on the first eco mode characteristic curve 52 for the host vehicle (S32).

  When it is determined that the value indicating the storage state is within the predetermined range, the third eco mode characteristic curve 56 with the maximum acceleration reduced to the rotating electric machine travelable range 58 is acquired. Then, the ECU 119 is instructed to perform acceleration control based on the third eco mode characteristic curve 56 for the host vehicle (S34). The functions of S32 and S34 are executed by the function of the maximum acceleration reduction module 106. After S34, the process proceeds to S36.

  Then, in the rotating electric machine travelable range 58, a command is given to the ECU 120 so that the engine 118 is stopped and driven by the rotating electric machine 120 (S36). This function is executed by the function of the drive source switching module 112. Note that after S10, S14, S32, and S36, the program is terminated.

  Therefore, the third eco mode characteristic curve 56 when the value indicating the power storage state of the power storage device is in a predetermined range is the first eco mode characteristic curve 52 when the value indicating the power storage state of the power storage device is not within the predetermined range. In comparison, the target maximum acceleration is reduced. Furthermore, in the rotating electric machine travelable range 58 in which traveling can be performed only by the rotating electrical machine, the engine 118 is stopped and driven by the rotating electrical machine 120, so that cruise control traveling can be performed with even lower fuel consumption.

It is a figure which shows the vehicle control system about a hybrid vehicle. It is a figure which shows a 1st maximum acceleration map. It is a flowchart which shows each procedure which performs low fuel consumption control at the time of cruise control driving | running | working in a vehicle control apparatus. It is a figure which shows a 2nd maximum acceleration map. 5 is a flowchart showing each procedure for performing low fuel consumption control at the time of cruise control travel based on the following vehicle information in the vehicle control device. It is a figure which shows a 3rd maximum acceleration map. 5 is a flowchart showing each procedure for performing low fuel consumption control during cruise control travel based on the power storage state of the power storage device in the vehicle control device.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 Vehicle control system, 20 Vehicle control apparatus, 47 1st maximum acceleration map, 48 2nd maximum acceleration map, 49 3rd maximum acceleration map, 50 Normal mode characteristic curve, 52 1st eco mode characteristic curve, 54 2nd eco mode Characteristic curve, 56 3rd eco mode characteristic curve, 58 Rotating electric machine travelable range, 102 Cruise travel control module, 104 Low fuel consumption travel instruction acquisition module, 106 Maximum acceleration reduction module, 108 Following vehicle information acquisition module, 110 Storage state information acquisition Module, 112 Drive source switching module, 114 storage unit, 118 engine, 120 rotating electrical machine, 122 cruise switch, 126 eco mode switch, 130 following vehicle sensor, 134 power storage state acquisition unit, 124 cruise switch I / F, 128 eco mode Switch I / F, row wheel after 132 sensor I / F, 136 power storage state acquiring unit I / F.

Claims (3)

Cruise control traveling means for performing constant speed traveling or following traveling by specifying an upper limit of acceleration with respect to the target vehicle speed;
Low fuel consumption travel instruction acquisition means for acquiring a low fuel consumption travel instruction from a user;
Acceleration reducing means for reducing the maximum acceleration with respect to the target vehicle speed in cruise control driving compared to when not acquiring a fuel-efficient driving instruction when acquiring a fuel-efficient driving instruction;
A vehicle control device comprising: The vehicle control device according to claim 1,
A detecting means for detecting the presence or absence of a following vehicle,
The acceleration reduction means
When getting fuel efficient driving instructions,
A vehicle control device that reduces the maximum acceleration with respect to a target vehicle speed in cruise control traveling when the following vehicle is detected, compared to when the following vehicle is not detected. In the vehicle control device according to claim 1 or 2,
A power storage state acquisition means for acquiring a power storage state of a power storage device serving as a drive source of the rotating electrical machine;
The acceleration reduction means
Reducing the maximum acceleration with respect to the target vehicle speed to the maximum acceleration that can be driven by the rotating electrical machine when the value indicating the power storage state of the power storage device is within a predetermined range that is equal to or lower than the vehicle speed that can be traveled by the rotating electrical machine. A vehicle control device.

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