WO2020121465A1 - 車両制御方法及び車両制御装置 - Google Patents
車両制御方法及び車両制御装置 Download PDFInfo
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- WO2020121465A1 WO2020121465A1 PCT/JP2018/045804 JP2018045804W WO2020121465A1 WO 2020121465 A1 WO2020121465 A1 WO 2020121465A1 JP 2018045804 W JP2018045804 W JP 2018045804W WO 2020121465 A1 WO2020121465 A1 WO 2020121465A1
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- Prior art keywords
- vehicle
- combustion engine
- internal combustion
- drive motor
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- 238000000034 method Methods 0.000 title claims description 24
- 238000002485 combustion reaction Methods 0.000 claims abstract description 67
- 230000001172 regenerating effect Effects 0.000 claims abstract description 45
- 230000005856 abnormality Effects 0.000 claims abstract description 41
- 230000004044 response Effects 0.000 claims description 2
- 230000002159 abnormal effect Effects 0.000 description 13
- 230000006870 function Effects 0.000 description 11
- 230000008569 process Effects 0.000 description 8
- 230000010365 information processing Effects 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 5
- 230000004043 responsiveness Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 238000004590 computer program Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18109—Braking
- B60W30/18127—Regenerative braking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/40—Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/50—Control strategies for responding to system failures, e.g. for fault diagnosis, failsafe operation or limp mode
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/08—Interaction between the driver and the control system
- B60W50/082—Selecting or switching between different modes of propelling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/02—Ensuring safety in case of control system failures, e.g. by diagnosing, circumventing or fixing failures
- B60W50/029—Adapting to failures or work around with other constraints, e.g. circumvention by avoiding use of failed parts
- B60W2050/0295—Inhibiting action of specific actuators or systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/02—Ensuring safety in case of control system failures, e.g. by diagnosing, circumventing or fixing failures
- B60W50/029—Adapting to failures or work around with other constraints, e.g. circumvention by avoiding use of failed parts
- B60W2050/0297—Control Giving priority to different actuators or systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/06—Combustion engines, Gas turbines
- B60W2510/0657—Engine torque
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/08—Electric propulsion units
- B60W2510/083—Torque
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/24—Energy storage means
- B60W2510/242—Energy storage means for electrical energy
- B60W2510/244—Charge state
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/08—Electric propulsion units
- B60W2710/083—Torque
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/84—Data processing systems or methods, management, administration
Definitions
- the present invention relates to a vehicle control method and a vehicle control device.
- Patent Document 1 a technique for detecting an abnormality in a generator mounted on a vehicle is known (Patent Document 1).
- the invention described in Patent Document 1 detects whether or not an abnormality has occurred in the generator based on the target rotation speed and the actual rotation speed.
- the present invention has been made in view of the above problems, and an object thereof is a vehicle control method and a vehicle control capable of stopping the vehicle in a short time when an abnormality is detected in a device mounted on the vehicle. It is to provide a device.
- a vehicle control method is a method of controlling a vehicle including a drive motor connected to a rotation shaft of a wheel, a battery supplying electric power to the drive motor, and an internal combustion engine connected to the drive motor.
- the vehicle has, as traveling modes, a normal mode and an eco mode in which regenerative braking force obtained by converting rotational energy of wheels into electric energy is larger than that in the normal mode.
- the vehicle control method stops the internal combustion engine and switches from the normal mode to the eco mode when at least an abnormality of the internal combustion engine is detected while the vehicle is traveling.
- the vehicle can be stopped in a short time when an abnormality is detected in the device mounted on the vehicle.
- FIG. 1 is a schematic configuration diagram of a vehicle control device according to an embodiment of the present invention.
- FIG. 2 is a time chart illustrating an operation example of the vehicle control device.
- FIG. 3 is an example of an image displayed on the screen of the meter or the navigation device.
- FIG. 4 is a time chart for explaining another operation example of the vehicle control device.
- FIG. 5 is a time chart explaining another operation example of the vehicle control device.
- FIG. 6 is a flowchart illustrating an operation example of the vehicle control device.
- FIG. 7 is a flowchart illustrating another operation example of the vehicle control device.
- FIG. 8 is a schematic configuration diagram of a vehicle control device according to a modification of the present invention.
- FIG. 9 is a diagram illustrating the normal mode, the eco mode, and the S mode.
- the vehicle control device 1 includes an atmospheric pressure sensor 10, an accelerator pedal 11, a mode switch 12, a pressure sensor 13, a controller 14, a brake pedal 15, a master cylinder 16, and an intake port. 17, an internal combustion engine 18, a generator 19, a motor controller 20, a battery 21, a drive motor 22, and a brake 23.
- the vehicle control device 1 may be mounted on a vehicle having an automatic driving function or may be mounted on a vehicle having no automatic driving function. Further, the vehicle control device 1 may be mounted on a vehicle capable of switching between automatic driving and manual driving.
- the automatic driving in the present embodiment refers to a state in which at least one of the actuators such as the brake, the accelerator, and the steering is controlled without the occupant's operation. Therefore, other actuators may be operated by the operation of the occupant.
- the automatic operation may be a state in which any control such as acceleration/deceleration control and lateral position control is being executed.
- the manual driving in the present embodiment refers to a state in which an occupant is operating the brake, accelerator, and steering, for example.
- the vehicle control device 1 is mounted in a vehicle that does not have an automatic driving function, as an example.
- the atmospheric pressure sensor 10 measures the atmospheric pressure and outputs it to the controller 14. The force with which the driver depresses the accelerator pedal 11 is transmitted to the controller 14.
- the mode switch 12 is a switch for switching between the normal mode and the eco mode.
- the controller 14 switches between the normal mode and the eco mode according to the switch operation of the driver. The difference between the normal mode and the eco mode will be described later.
- the internal combustion engine 18 is mechanically connected to the generator 19 via a speed reducer, a shaft, and the like.
- the generator 19 is electrically connected to the drive motor 22 and the battery 21.
- the battery 21 is electrically connected to the generator 19 and the drive motor 22.
- the drive motor 22 is mechanically connected to the rotating shaft of a wheel (tire).
- the pressure sensor 13 measures the intake manifold negative pressure and outputs it to the controller 14.
- the generator 19 receives power from the internal combustion engine 18 and charges the battery 21.
- the generator 19 also supplies electric power to the drive motor 22.
- the battery 21 supplies electric power to the drive motor 22.
- the drive motor 22 drives the wheels using the electric power received from the battery 21 or the generator 19. Further, the drive motor 22 charges the battery 21 with the electric power regenerated.
- the battery 21 is not particularly limited, but is, for example, a lithium ion battery.
- the motor controller 20 controls the internal combustion engine 18, the generator 19, the battery 21, the drive motor 22, and the like according to the operation of the accelerator pedal 11 or the brake pedal 15 by the driver.
- the method of connecting the motor controller 20 to the generator 19, the drive motor 22 and the like is not particularly limited, but, for example, CAN (Controller Area Network) can be used.
- CAN Controller Area Network
- the controller 14 and the motor controller 20 are described separately, but the controller 14 and the motor controller 20 may function as one controller.
- the controller 14 and the motor controller 20 are general-purpose microcomputers including a CPU (central processing unit), a memory, and an input/output unit.
- a computer program for causing the vehicle control device 1 to function is installed in the microcomputer.
- the microcomputer functions as a plurality of information processing circuits included in the vehicle control device 1.
- a plurality of information processing circuits included in the vehicle control device 1 are realized by software is shown.
- dedicated hardware for executing each information processing described below is prepared to perform information processing. It is also possible to configure a circuit.
- the plurality of information processing circuits may be configured by individual hardware.
- the vehicle control device 1 has a function of stopping the vehicle in a short time when an abnormality is detected in a device mounted on the vehicle. It is assumed that the vehicle is traveling in the normal mode at the start of the time chart shown in FIG.
- the controller 14 detects an abnormality in a device mounted on the vehicle.
- the target devices include the internal combustion engine 18, the power generator 19, and a connection mechanism (for example, a shaft) that mechanically connects the internal combustion engine 18 and the power generator 19.
- the controller 14 may be configured to detect at least one of an abnormality of the internal combustion engine 18, an abnormality of the power generator 19, and an abnormality of a connection mechanism that mechanically connects the internal combustion engine 18 and the power generator 19.
- the abnormality of the internal combustion engine 18 includes a sensor abnormality for controlling the internal combustion engine 18 and a failure of a mechanism for transmitting power generated by combustion such as a piston and a shaft to the outside.
- Abnormalities in the generator 19 include physical failures such as locks and inverter failures.
- Abnormalities in the connection mechanism include shaft failures. These abnormalities may be detected by a sensor (not shown) or may be detected based on information transmitted by the internal combustion engine 18 or the generator 19. In the example shown in FIG. 2, it is assumed that the controller 14 detects an abnormality of the internal combustion engine 18 at time t.
- the controller 14 When the controller 14 detects an abnormality in the internal combustion engine 18, the flag switches from normal to abnormal as shown in FIG. At this time, the controller 14 stops the internal combustion engine 18. Further, at this time, the controller 14 switches from the normal mode to the eco mode.
- the regenerative braking force and the responsiveness of the driving force of the drive motor 22 are set in the normal mode and the eco mode.
- the regenerative braking force set in the eco mode is larger than the regenerative braking force set in the normal mode.
- the responsiveness of the driving force set in the eco mode is slower than the responsiveness of the driving force set in the normal mode.
- the upper limit value of the regenerative braking force increases as shown in Fig. 2.
- the reason is that, as described above, the regenerative braking force set in the eco mode is larger than the regenerative braking force set in the normal mode.
- the maximum regenerative braking force A shown in FIG. 2 is the upper limit value of the regenerative braking force set in the normal mode.
- the maximum regenerative braking force B shown in FIG. 2 is the upper limit value of the regenerative braking force set in the eco mode.
- the controller 14 displays the image 30 shown in FIG. 3 on the screen of the meter or the navigation device to prompt the driver to stop immediately.
- the image 30 shown in FIG. 3 is an example, and the present invention is not limited to this.
- the controller 14 may use a speaker (not shown) mounted on the vehicle to notify by voice that "please stop safely”.
- the regenerative brake starts to operate. Since the regenerative braking force set in the eco mode is larger than the regenerative braking force set in the normal mode, the vehicle stops in a short time without the driver stepping on the brake pedal 15 (time t+3).
- the regenerative brake starts operating at the timing when the accelerator opening becomes zero, but the timing at which the regenerative brake starts operating is not limited to this.
- the regenerative brake may start to operate when the accelerator opening becomes equal to or less than a predetermined value (when the driver's depression amount decreases). Further, the switching between power running and regeneration and the strength of regenerative deceleration may be adjusted by such a predetermined value. Such a predetermined value is obtained, for example, by experiment or simulation.
- the controller 14 When the flag is switched from normal to abnormal, the controller 14 gradually reduces the maximum driving force of the drive motor 22, as shown in FIG. As a result, the controller 14 can prompt the driver to stop the vehicle.
- the positive direction indicates power running and the negative direction indicates regeneration.
- the maximum driving force of the drive motor 22 is defined as the largest driving force among the driving forces on the power running side that the driving motor 22 can output.
- step S101 If the controller 14 detects an abnormality in the device mounted on the vehicle (Yes in step S101), the process proceeds to step S103. On the other hand, when the controller 14 does not detect any abnormality (No in step S101), the process proceeds to step S107.
- step S103 If the vehicle is traveling in the normal mode (Yes in step S103), the process proceeds to step S105. On the other hand, when the vehicle is traveling in the eco mode (No in step S103), the process proceeds to step S107.
- step S105 the controller 14 switches from the normal mode to the eco mode. At this time, the controller 14 stops the internal combustion engine 18. After that, the process proceeds to step S107. If the pressure difference between the atmospheric pressure and the intake manifold negative pressure is less than or equal to the predetermined value (Yes in step S107), the process proceeds to step S109, and the controller 14 sets the maximum driving force of the drive motor 22 to zero (FIG. 4). reference). On the other hand, when the differential pressure is larger than the predetermined value (No in step S107), the process ends.
- the frequency of use of the mechanical brake for stopping the vehicle is reduced as compared with the normal mode.
- reduction in the differential pressure between the atmospheric pressure and the intake manifold negative pressure is suppressed as compared with the normal mode.
- This allows the driver to use the mechanical brake even when the regenerative braking force is limited due to, for example, the remaining capacity (SOC: STATE OF CHARGE) of the battery 21 becoming high (for example, almost the maximum capacity) in the middle of the stop.
- the vehicle can be stopped in a short time.
- the vehicle control device 1 may notify the driver of the use of the mechanical brake via a speaker or the like. As a result, the vehicle can be stopped for a short time.
- the vehicle is equipped with a mechanical brake that operates by using the intake manifold negative pressure of the internal combustion engine 18.
- the vehicle control device 1 sets the maximum driving force of the drive motor 22 to zero when the pressure difference between the atmospheric pressure and the intake manifold negative pressure is equal to or less than a predetermined value. As a result, the vehicle does not run even when the user depresses the accelerator pedal 11, so that the running of the vehicle is suppressed and the stop of the vehicle is prompted.
- the vehicle control device 1 detects the abnormality in the regenerative braking force without switching from the normal mode to the eco mode (that is, in the state where the normal mode is maintained). You may increase compared with before.
- the vehicle control device 1 may change the maximum regenerative braking force A to the maximum regenerative braking force B while maintaining the normal mode. As a result, the vehicle control device 1 can stop the vehicle in a short time without switching from the normal mode to the eco mode.
- steps S201, 207, and 209 are the same as steps S101, 107, and 109 shown in FIG. 6, so description thereof will be omitted.
- the internal combustion engine 18 can be separated from the drive system, so that the controller 14 can optimally use the power sources of both the internal combustion engine 18 and the drive motor 22.
- the process after the abnormality is detected is the same as that of the above-described embodiment, so the vehicle stops in a short time.
- the processing circuit includes a programmed processing device such as a processing device including an electrical circuit.
- Processing circuitry also includes devices such as application specific integrated circuits (ASICs) and circuit components that are arranged to perform the functions described. Further, the vehicle control device 1 and the vehicle control device 2 can improve the function of the computer.
- ASICs application specific integrated circuits
- the vehicle has been described as having two modes (normal mode and eco mode), but the number of modes is not limited to two.
- the vehicle may have a third mode (S mode). The difference between the normal mode, the eco mode, and the S mode will be described with reference to FIG. 9.
- the regenerative braking force set in the eco mode and the S mode is larger than the regenerative braking force set in the normal mode.
- the regenerative braking force set in the eco mode and the regenerative braking force set in the S mode are the same.
- the S mode is the fastest and the eco mode is the slowest.
- the normal mode is intermediate between the S mode and the eco mode.
- the vehicle control device 1 switches from the S mode to the eco mode after the abnormality is detected. Since the regenerative braking force set in the eco mode is the same as the regenerative braking force set in the S mode (because it is larger than the regenerative braking force set in the normal mode), the vehicle stops in a short time. Further, the responsiveness of the driving force set in the eco mode is slower than the responsiveness of the driving force set in the S mode, so that the traveling of the vehicle is suppressed and the stopping of the vehicle is prompted.
- connection between the drive motor 22 and the internal combustion engine 18 includes mechanical connection and indirect connection.
- the indirect connection means that the drive motor 22 is connected to the internal combustion engine 18 via the generator 19, as shown in FIG.
- One aspect of the present invention includes a drive motor mechanically connected to a rotating shaft of a wheel, a generator that supplies electric power to the drive motor, a battery that supplies electric power to the drive motor or the generator,
- a vehicle control method for controlling a vehicle including an internal combustion engine mechanically connected to a generator, wherein the vehicle has a normal mode as a traveling mode, and rotational energy of the wheels from the normal mode to electrical energy. It has an eco mode in which the regenerative braking force obtained by converting is large, and the internal combustion engine is abnormal, the generator is abnormal, and the internal combustion engine and the generator are mechanically connected while the vehicle is traveling. When at least one of the abnormalities of the connection mechanism is detected, the internal combustion engine is stopped and the normal mode is switched to the eco mode.
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Abstract
Description
図1を参照して、本実施形態に係る車両制御装置1の構成例について説明する。図1に示すように、車両制御装置1は、大気圧センサ10と、アクセルペダル11と、モードスイッチ12と、圧力センサ13と、コントローラ14と、ブレーキペダル15と、マスターシリンダー16と、吸気口17と、内燃機関18と、発電機19と、モータコントローラ20と、バッテリ21と、駆動モータ22と、ブレーキ23と、を備える。
次に、図2に示すタイムチャートを参照して、車両制御装置1の一動作例を説明する。車両制御装置1は、車両に搭載された機器に異常が検出された場合に短時間で車両を停止させるための機能を備える。図2に示すタイムチャートの開始時点において、車両は通常モードで走行していると仮定する。
以上説明したように、本実施形態に係る車両制御装置1によれば、以下の作用効果が得られる。
次に、図8を参照して、本実施形態の変形例について説明する。
10 大気圧センサ
11 アクセルペダル
12 モードスイッチ
13 圧力センサ
14 コントローラ
15 ブレーキペダル
16 マスターシリンダー
17 吸気口
18 内燃機関
19 発電機
20 モータコントローラ
21 バッテリ
22 駆動モータ
23 ブレーキ
Claims (6)
- 車輪の回転軸に接続された駆動モータと、前記駆動モータに電力を供給するバッテリと、前記駆動モータに接続された内燃機関とを備える車両を制御する車両制御方法であって、
前記車両は、走行モードとして、通常モードと、前記通常モードより前記車輪の回転エネルギーを電気エネルギーに変換することにより得られる回生制動力が大きいエコモードとを有し、
前記車両の走行中に少なくとも前記内燃機関の異常を検出した場合、前記内燃機関を停止させ、かつ前記通常モードから前記エコモードに切り替える
ことを特徴とする車両制御方法。 - 車輪の回転軸に接続された駆動モータと、前記駆動モータに電力を供給するバッテリと、前記駆動モータに接続された内燃機関とを備える車両を制御する車両制御方法であって、
前記車両の走行中に少なくとも前記内燃機関の異常を検出した場合、前記内燃機関を停止させ、かつ前記車輪の回転エネルギーを電気エネルギーに変換することにより得られる回生制動力を前記異常が検出される前と比較して増加させる
ことを特徴とする車両制御方法。 - 前記車両は、前記内燃機関のインテークマニホールド負圧を用いて作動する機械ブレーキをさらに備え、
大気圧と前記インテークマニホールド負圧との差圧が所定値以下の場合、前記駆動モータの最大駆動力をゼロに設定する
ことを特徴とする請求項1または2に記載の車両制御方法。 - 前記車両は、前記走行モードとして、Sモードをさらに有し、
前記Sモードにおいて、前記回生制動力の大きさは前記エコモードと同じであり、前記駆動モータの応答性は前記エコモードより早く、
前記車両の走行中に前記車両に搭載された機器の異常を検出した場合、前記内燃機関を停止させ、かつ前記通常モードから前記Sモードに切り替える
ことを特徴とする請求項1に記載の車両制御方法。 - 車輪の回転軸に接続された駆動モータと、前記駆動モータに電力を供給するバッテリと、前記駆動モータに接続された内燃機関とを備える車両を制御する車両制御装置であって、
前記車両は、走行モードとして、通常モードと、前記通常モードより前記車輪の回転エネルギーを電気エネルギーに変換することにより得られる回生制動力が大きいエコモードとを有し、
前記車両の走行中に少なくとも前記内燃機関の異常を検出した場合、前記内燃機関を停止させ、かつ前記通常モードから前記エコモードに切り替えるコントローラを備える
ことを特徴とする車両制御装置。 - 車輪の回転軸に接続された駆動モータと、前記駆動モータに電力を供給するバッテリと、前記駆動モータに接続された内燃機関とを備える車両を制御する車両制御装置であって、
前記車両の走行中に少なくとも前記内燃機関の異常を検出した場合、前記内燃機関を停止させ、かつ前記車輪の回転エネルギーを電気エネルギーに変換することにより得られる回生制動力を前記異常が検出される前と比較して増加させるコントローラを備える
ことを特徴とする車両制御装置。
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BR112021011196-4A BR112021011196B1 (pt) | 2018-12-13 | Método de controle de veículo e dispositivo de controle de veículo | |
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EP18942657.0A EP3895946B1 (en) | 2018-12-13 | 2018-12-13 | Vehicle control method and vehicle control device |
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US20220041164A1 (en) | 2022-02-10 |
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