WO2023068019A1 - 車両システム - Google Patents
車両システム Download PDFInfo
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- WO2023068019A1 WO2023068019A1 PCT/JP2022/036827 JP2022036827W WO2023068019A1 WO 2023068019 A1 WO2023068019 A1 WO 2023068019A1 JP 2022036827 W JP2022036827 W JP 2022036827W WO 2023068019 A1 WO2023068019 A1 WO 2023068019A1
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- light distribution
- distribution control
- update
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- vehicle
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- 238000004891 communication Methods 0.000 claims abstract description 15
- 238000012360 testing method Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 description 18
- 238000012545 processing Methods 0.000 description 11
- 230000006870 function Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/65—Updates
Definitions
- the present disclosure relates to vehicle systems.
- the purpose of this disclosure is to reduce risks that may arise from program updates using OTA.
- a vehicle system includes: an update control unit that controls updating of the light distribution control program using update data acquired via wireless communication; If the updating of the light distribution control program by the update data fails, the light distribution control performed by the light distribution control unit capable of controlling the light distribution of the vehicle lamp based on the light distribution control program is performed. a restricting part that restricts; Prepare.
- a vehicle system includes: an update control unit that controls updating of a light distribution control program for performing light distribution control of a vehicle lamp using update data acquired via wireless communication; a storage unit that stores change data capable of changing the light distribution control program to a state before updating by the update data or to a predetermined state; The update control unit controls to change the light distribution control program to a pre-update state or a predetermined state based on the change data when the update of the light distribution control program by the update data fails.
- FIG. 1 is a block diagram showing an example of a vehicle system according to one embodiment of the present disclosure.
- FIG. 2 is a flowchart illustrating an example of processing related to program update according to an embodiment of the present disclosure.
- FIG. 3 is a flow chart showing an example of a modification of the processing shown in FIG.
- FIG. 1 is a schematic diagram showing a vehicle system 1 according to one embodiment of the present disclosure.
- the vehicle system 1 may be realized by the vehicle lamp 200 , the vehicle body 100 , or both the vehicle lamp 200 and the vehicle body 100 .
- a case where the vehicle system 1 is realized by the vehicle lamp 200 will be mainly described below.
- the vehicle lamp 200 is a lamp mounted on a vehicle, such as a headlamp.
- the vehicle lamp 200 includes a lamp ECU (Electronic Control Unit) 210 , a storage section 220 , a leveling actuator 230 and a light source 240 .
- ECU Electronic Control Unit
- the storage unit 220 includes, for example, a ROM (Read Only Memory) storing various programs and various data for controlling various operations of the vehicle lamp 200, and a RAM (Random Access Memory).
- the processor of the lamp ECU 210 develops data designated from various programs stored in the ROM onto the RAM, and controls various operations of the vehicle lamp 200 in cooperation with the RAM.
- the storage unit 220 stores a light distribution control program 221, update data 222, and change data 223.
- the light distribution control program 221 is a program for causing the lamp ECU 210 to function as the light distribution control section 214 .
- the storage unit 220 also stores other programs for controlling operations other than light distribution control.
- the update data 222 is data for updating the light distribution control program 221.
- the update data 222 is, for example, data acquired from the computer device 2 via the wireless network 3 .
- the update data 222 is first acquired by the communication device 130 mounted on the vehicle body 100 and sent to the vehicle lamp 200 through the gateway 140 .
- the update data 222 is preferably difference data for updating the difference between the program before and after the update, from the viewpoint of reducing the data volume and communication traffic and shortening the update time.
- a communication device and a gateway may be installed in the vehicle lighting device 200 so that the vehicle lighting device 200 can directly communicate with the computer device 2 to obtain the update data 222 .
- the change data 223 is data for changing the light distribution control program 221 to the state before updating by the update data 222 or a predetermined state.
- the "predetermined state” is, for example, a state after two or more previous updates, an initial state, or any other state in which light distribution control can be performed without any abnormality (for example, only basic operations are possible. state).
- One specific example of the "predetermined state” is a state in which only Hi/Lo switching by the dimmer switch 150 is possible.
- the change data 223 may be data that is saved as backup data when the update is successful.
- the change data 223 is data for changing the light distribution control program 221 to an initial state or a state in which light distribution control can be performed without any other abnormality
- the change data 223 is data that is not changed as it was originally. There may be. Note that if the lamp ECU 210 is configured to function as the restriction unit 212 , the storage unit 220 does not have to include the change data 223 .
- the lamp ECU 210 controls various operations of the vehicle lamp 200 .
- the lamp ECU 210 includes a processor such as an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or a general-purpose CPU (Central Processing Unit).
- ASIC Application Specific Integrated Circuit
- FPGA Field Programmable Gate Array
- CPU Central Processing Unit
- the lamp ECU 210 By reading the light distribution control program 221 and other programs stored in the storage unit 220, the lamp ECU 210 operates an update control unit 211, a restriction unit 212, a notification unit 213, a light distribution control unit 214, and an update determination unit (operation judgment unit) 217.
- the update control unit 211 controls updating of the light distribution control program 221 using the update data 222 .
- the update control unit 211 starts updating the light distribution control program 221 when a predetermined start condition is satisfied after the update data 222 has been acquired and made available.
- the predetermined start condition is, for example, that the remaining amount of the battery mounted on the vehicle body 100 is equal to or greater than a predetermined value. By setting such a start condition, it is possible to prevent a situation in which the update fails due to the battery running out during the update.
- the predetermined start condition may also include, for example, that the vehicle is stopped.
- the processing load on the vehicle as a whole, including the processing by the vehicle ECU and the like, is small, so the risk of failure to update the light distribution control program 221 can be reduced.
- the update control unit 211 changes the light distribution control program 221 to the state before updating or a predetermined state based on the change data 223.
- the update control unit 211 is configured as described in this paragraph, the lamp ECU 210 does not have to include the limiting unit 212 .
- the restriction unit 212 restricts the light distribution control performed by the light distribution control unit 214 when updating the light distribution control program 221 with the update data 222 fails.
- the restriction unit 212 prevents automatic light distribution control by the light distribution control unit 214, for example.
- Automatic light distribution control includes, for example, automatic switching between high beam and low beam, ADB (Adaptive Driving Beam), AFS (Adaptive Front-Lighting System), and the like.
- the restricting unit 212 restricts, for example, at least one or more of the automatic light distribution controls described above to be disabled, and preferably to disable all of them. By providing the restriction unit 212, even if the update of the light distribution control program 221 fails, it is possible to prevent a situation in which an unintended incomplete light distribution pattern is generated. Note that even if the light distribution control is restricted by the restriction unit 212, for example, it is possible to manually switch between high beam and low beam.
- the success or failure of the update is determined by including configuration information in the case where the light distribution control program 221 has been correctly updated in the update data 222, and determining whether the configuration information and the light distribution control program 221 have been actually updated. It may be performed by comparing the configuration information and the Also, determination of success or failure of update may be performed using a conventionally known technique such as CRC (Cyclic Redundancy Check), for example.
- CRC Cyclic Redundancy Check
- the notification unit 213 outputs a signal for notifying the user of the vehicle that the update of the light distribution control program 221 has failed.
- the signal output by the notification unit 213 is sent to, for example, an in-vehicle display or an in-vehicle speaker, and the user is notified that the update has failed via an image or sound.
- it may be configured such that a portable terminal owned by the user of the vehicle notifies of update failure based on a signal output by the notification unit 213 using wireless communication.
- the light distribution control unit 214 performs light distribution control of the vehicle lamp 200 based on the light distribution control program 221 .
- the light distribution control unit 214 can perform automatic light distribution control as described above, for example.
- Light distribution control section 214 includes leveling control section 215 and light source control section 216 .
- the leveling control section 215 controls the operation of the leveling actuator 230 .
- the light source control unit 216 controls turning on and off of the light source 240 . Although not shown, there are a plurality of light sources 240 .
- the update determination unit 217 determines whether or not the light distribution control performed by the light distribution control unit 214 is normal based on the updated light distribution control program 221 when the update of the light distribution control program 221 is successful. .
- the method for determining whether or not the light distribution control is normal is not particularly limited. determination may be performed. Specifically, the light distribution test pattern emitted by the vehicle lamp 200 is imaged by a camera (not shown) mounted on the vehicle body 100, and the light distribution control is performed by comparing the imaged image with verification data. A determination of whether or not it is normal may be performed.
- the light distribution test pattern is, for example, a preset test light distribution pattern. Such a determination method is preferably performed at night, for example, from the viewpoint that the light distribution test pattern can be clearly imaged.
- the method for determining whether or not the light distribution control is normal is based on the current value of each light source 240 when the vehicle lamp 200 irradiates the light distribution test pattern based on the light distribution control program 221. It may be determined whether or not the light distribution control performed by the light distribution control unit 214 is normal. This determination method is useful, for example, in that determination can be performed with high accuracy not only at night but also during the day.
- the determination of whether the light distribution control is normal includes a leveling test and a swivel test. Specifically, whether or not the light distribution control is normal is determined based on the voltage values of the leveling actuator 230 and the swivel actuator (not shown) when leveling and swiveling are performed according to a preset test pattern. preferably comprising:
- the timing at which the update determination unit 217 makes the determination is not particularly limited, but is preferably after the light distribution control program 221 is updated and when the vehicle is stopped. Moreover, the timing at which the update determination unit 217 makes the determination is preferably the timing until the light distribution control during running is executed.
- the vehicle body 100 includes a vehicle ECU 110, a storage unit 120, a communication device 130, a gateway 140, and a dimmer switch 150.
- the vehicle ECU 110 controls various operations of the entire vehicle by reading various programs and various data stored in the storage unit 120 .
- Vehicle ECU110 contains processors, such as ASIC, FPGA, or general-purpose CPU, for example.
- the storage unit 120 includes, for example, a ROM storing various programs and various data for controlling various operations of the vehicle lamp 200, and a RAM.
- the processor of vehicle ECU 110 develops data designated from various programs stored in ROM onto RAM, and controls various operations of vehicle body 100 in cooperation with RAM.
- the communication device 130 is a device that performs wireless communication with the outside of the vehicle body 100 via the wireless network 3 .
- the communication device 130 is capable of communication connection with the computer device 2, which is a server that distributes the update data 222 by OTA.
- Various data received by the communication device 130 are sent through the gateway 140 to a location that requires the data.
- the dimmer switch 150 is a switch for manually switching between high beam and low beam by the user of the vehicle.
- the update control section 211, the restriction section 212, and the notification section 213 are replaced with or added to.
- the vehicle ECU 110 may be configured to function as the update control unit 111 , the restriction unit 112 and the notification unit 113 .
- gateway 140 may be configured to function as update control unit 141 .
- the storage unit 120 stores the light distribution control program 121, the update data 122, and the change data 123. can be configured to
- FIG. 2 is a flowchart illustrating an example of processing related to program update according to an embodiment of the present disclosure. Note that FIG. 2 is an example in which the change data 223 is not used.
- step S ⁇ b>1 the lamp ECU 210 acquires the update data 222 .
- the acquisition route of the update data 222 is as described above.
- the lamp ECU 210 updates the light distribution control program 221 using the update data 222 in step S3.
- a start condition for updating for example, one or more of the start conditions described above may be employed. If the update start condition is not satisfied (No in step S2), the light distribution control program 221 is not updated until the start condition is satisfied.
- the lamp ECU 210 limits the automatic light distribution control of the vehicle lamp 200 in step S11. In this embodiment, the lamp ECU 210 restricts so that only manual switching by the dimmer switch 150 is possible. Note that this restriction is lifted, for example, when the update operation is performed again and the update succeeds.
- step S12 the lamp ECU 210 outputs a signal for notifying that the update of the light distribution control program 221 has failed. For example, based on the signal, the vehicle ECU 110 outputs an image or sound indicating that the update has failed from the in-vehicle display or the in-vehicle speaker, and instructs the user of the vehicle to execute the update process again. encourage you to do so.
- step S21 the lamp ECU 210 determines whether or not the light distribution control performed based on the updated light distribution control program 221 is normal. do.
- the determination method in step S21 one or more of the determination methods described above can be adopted as the determination method in step S21.
- the timing for making the determination in step S21 is one of the timings described above.
- step S23 the light distribution control by the updated light distribution control program 221 is continued, and the process ends.
- step S11 the lamp ECU 210 outputs a signal to notify that the update data 222 is not proper data.
- FIG. 3 is a flow chart showing an example of a modification of the processing shown in FIG. Note that FIG. 3 is an example in which the change data 223 is used. In the example of FIG. 3 , the lamp ECU 210 does not have to function as the limiter 212 .
- steps S1 to S4 are the same as in FIG. 2, so description thereof is omitted.
- the lamp ECU 210 changes the light distribution control program 221 using the change data 223 in step S31.
- the lamp ECU 210 outputs a signal for notifying that the update of the light distribution control program 221 has failed. For example, based on the signal, the vehicle ECU 110 outputs an image or sound indicating that the update has failed from the in-vehicle display or the in-vehicle speaker, and instructs the user of the vehicle to execute the update process again. encourage you to do so.
- the lighting fixture ECU stores the current state of the light distribution control program (for example, information indicating what kind of light distribution control is possible, version information that can specify the light distribution control program after change, etc.). It is preferable to output a signal for notification.
- step S33 the lamp ECU 210 starts light distribution control by the light distribution control program 221 after the change in step S31. This light distribution control is continued until, for example, the updating data 222 is normally updated. It should be noted that, after step S32, it may be determined whether or not the change has been made normally, as in step S4. Alternatively, the process may proceed to step S21 if it is determined that the change is normal, and to proceed to step S11 in FIG. 2 if it is determined that the change is not normal.
- step S4 If the light distribution control program 221 has been successfully updated (Yes in step S4), the process proceeds to step S21.
- the processing of steps S21 to S23 in FIG. 3 is the same as in FIG. 2, so the description is omitted.
- the lamp ECU 210 updates the change data 223 using the update data 222 in step S24.
- the updated change data 223 is used, for example, when the next update of the light distribution control program 221 fails.
- each process executed by the lamp ECU 210 may be executed by the vehicle ECU 110 or by the gateway 140 as long as there is no contradiction. Also, not all processing is essential, and some processing may not be performed.
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Abstract
Description
無線通信を介して取得した更新用データを用いた配光制御プログラムの更新を制御する更新制御部と、
前記更新用データによる前記配光制御プログラムの更新に失敗した場合に、前記配光制御プログラムに基づいて車両用灯具の配光制御をすることが可能な配光制御部が行う前記配光制御を制限する制限部と、
を備える。
車両用灯具の配光制御を行うための配光制御プログラムの、無線通信を介して取得した更新用データを用いた更新を制御する更新制御部と、
前記配光制御プログラムを前記更新用データによる更新前または所定の状態に変更することが可能な変更用データを記憶する記憶部と、を備え、
前記更新制御部は、前記更新用データによる前記配光制御プログラムの更新が失敗した場合に、前記変更用データに基づいて前記配光制御プログラムを更新前または所定の状態に変更するよう制御する。
まず、図1を用いて、本開示の一実施形態に係る車両システムについて説明する。図1は、本開示の一実施形態に係る車両システム1を示す模式図である。本開示において、車両システム1は、車両用灯具200によって実現されてもよいし、車両本体100によって実現されてもよいし、車両用灯具200および車両本体100の両方によって実現されてもよい。以下では、主として、車両システム1が車両用灯具200によって実現される場合を説明する。
次に、図2および図3を用いて、車両システム1の動作例について説明をする。図2は、本開示の一実施形態に係るプログラム更新に関連する処理の一例を示すフローチャートである。なお、図2は、変更用データ223を用いない場合の例である。
Claims (7)
- 無線通信を介して取得した更新用データを用いた配光制御プログラムの更新を制御する更新制御部と、
前記更新用データによる前記配光制御プログラムの更新に失敗した場合に、前記配光制御プログラムに基づいて車両用灯具の配光制御をすることが可能な配光制御部が行う前記配光制御を制限する制限部と、
を備える、車両システム。 - 車両用灯具の配光制御を行うための配光制御プログラムの、無線通信を介して取得した更新用データを用いた更新を制御する更新制御部と、
前記配光制御プログラムを前記更新用データによる更新前または所定の状態に変更することが可能な変更用データを記憶する記憶部と、を備え、
前記更新制御部は、前記更新用データによる前記配光制御プログラムの更新が失敗した場合に、前記変更用データに基づいて前記配光制御プログラムを更新前または所定の状態に変更するよう制御する、
車両システム。 - さらに、前記配光制御プログラムの更新が失敗したことを車両のユーザに報知するための信号を出力する報知部を備える、
請求項1または請求項2に記載の車両システム。 - 前記更新制御部は、車両のバッテリの残量が所定値以上の場合に前記配光制御プログラムを更新するよう制御する、
請求項1または請求項2に記載の車両システム。 - 前記配光制御プログラムに基づいて前記車両用灯具の配光制御をすることが可能な配光制御部と、
前記配光制御プログラムの更新が成功した場合に、更新後の配光制御プログラムに基づいて前記配光制御部が行う配光制御が正常であるか否かを判定する動作判定部と、をさらに備える、
請求項1または請求項2のいずれか一項に記載の車両システム。 - 前記動作判定部は、前記更新後の配光制御プログラムに基づいて前記車両用灯具が照射した配光テストパターンを撮像した画像に基づいて前記配光制御部が行う配光制御が正常であるか否かを判定する、
請求項5に記載の車両システム。 - 前記動作判定部による判定は、前記配光制御プログラムに基づいて前記車両用灯具が配光テストパターンを照射したときの、前記車両用灯具に含まれる各光源の電流値に基づいて前記配光制御部が行う配光制御が正常であるか否かを判定することを含む、
請求項5に記載の車両システム。
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WO2021024589A1 (ja) * | 2019-08-06 | 2021-02-11 | 日本電気株式会社 | モビリティ制御システム、方法、および、プログラム |
JP2021047641A (ja) * | 2019-09-18 | 2021-03-25 | トヨタ自動車株式会社 | 車両用ソフトウェア更新システム |
JP2021171947A (ja) | 2020-04-21 | 2021-11-01 | 株式会社トヨタプロダクションエンジニアリング | 含浸容器 |
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JP2017199183A (ja) | 2016-04-27 | 2017-11-02 | 日立オートモティブシステムズ株式会社 | 車両用電子制御装置、プログラム更新方法、サーバ装置 |
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JP2021171947A (ja) | 2020-04-21 | 2021-11-01 | 株式会社トヨタプロダクションエンジニアリング | 含浸容器 |
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