CN111699601A - Vehicle control device - Google Patents
Vehicle control device Download PDFInfo
- Publication number
- CN111699601A CN111699601A CN201980012568.6A CN201980012568A CN111699601A CN 111699601 A CN111699601 A CN 111699601A CN 201980012568 A CN201980012568 A CN 201980012568A CN 111699601 A CN111699601 A CN 111699601A
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- China
- Prior art keywords
- power supply
- microcomputer
- line
- control system
- power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/10—Parallel operation of dc sources
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B9/00—Safety arrangements
- G05B9/02—Safety arrangements electric
Abstract
The invention provides a vehicle control device capable of restraining the increase of power supply capacity and executing fault operation even if an abnormality occurs in a control system power supply. The present invention is provided with: a 1 st switch (SW2) provided on the 1 st power supply line (31) and switching the 1 st microcomputer (14) and the 1 st power supply (13) on and off; a 2 nd switch (SW1) provided on the 2 nd power supply line (27) and switching the 2 nd microcomputer (15) and the 2 nd power supply (17) on and off; a 3 rd power supply line (33) connecting the 1 st power supply line and the 2 nd power supply line; and a common potential supply circuit provided in the 3 rd power supply line, for disconnecting the 3 rd power supply line when a 2 nd power supply (17) is normal, and for supplying a voltage having the same potential as an output voltage of the 2 nd power supply from the 1 st power supply to the 2 nd microcomputer in a state where the 1 st switch and the 2 nd switch are disconnected when the 2 nd power supply is abnormal.
Description
Technical Field
The present invention relates to a vehicle control device mounted on a vehicle, and more particularly to a power supply for the vehicle control device.
Background
In the vehicle control apparatus, there are provided an identification system microcomputer which processes a signal from a sensor to obtain information, and a control system microcomputer which communicates with and controls the vehicle based on the information obtained by the identification system microcomputer.
In a vehicle control device, a fail-safe operation (フェールオペレーション) is required to ensure safety by operating a system even when a failure occurs in a certain function or component.
In particular, when an abnormality is detected in a power supply that supplies electric power to a control system microcomputer, the system itself of the vehicle control device has been stopped so far. The problems are that: if the system is stopped, since communication with the vehicle cannot be ensured, there is a possibility that the safety of the vehicle cannot be ensured.
As a solution to this problem, there is a method in which, in a system having 2 microcomputers, when an abnormality occurs in one of the power supplies, one of the microcomputer power supplies is stopped, and a voltage is supplied from the other power supply to the microcomputer (patent document 1).
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open publication No. 2013-126361
Disclosure of Invention
Problems to be solved by the invention
However, in the method described in patent document 1, when one power supply is abnormal, it is necessary to operate 2 microcomputers by the other power supply, and therefore, it is necessary to increase the power supply capacity of each microcomputer. Accordingly, the cost increases, and the mounting area of the substrate occupied by the power supply increases.
The present invention has been made in view of the above problems, and an object thereof is to provide a vehicle control device capable of performing a malfunction operation even when an abnormality occurs in a control system power supply while suppressing an increase in power supply capacity.
Means for solving the problems
In order to achieve the above object, the present invention includes: a sensor; a sensor; a 1 st microcomputer which receives and processes signals from the sensor; a 2 nd microcomputer that generates a vehicle control instruction according to a processing result of the 1 st microcomputer; a 1 st power supply that supplies power to the 1 st microcomputer; a 2 nd power supply that supplies power to the 2 nd microcomputer; a 1 st power line connecting the 1 st microcomputer and the 1 st power supply; a 2 nd power line connecting the 2 nd microcomputer and the 2 nd power supply; a 1 st switch disposed on the 1 st power line and switching the 1 st microcomputer and the 1 st power supply on and off; and a 2 nd switch provided on the 2 nd power supply line and switching the 2 nd microcomputer and the 2 nd power supply on and off, the vehicle control device including: a 3 rd power line connecting the 1 st power line and the 2 nd power line; and a common potential supply circuit that is provided in the 3 rd power supply line, and that disconnects the 3 rd power supply line when the 2 nd power supply is normal, and that supplies a voltage having the same potential as an output voltage of the 2 nd power supply from the 1 st power supply to the 2 nd microcomputer when the 2 nd power supply is abnormal, with the 1 st switch and the 2 nd switch disconnected.
According to the present invention configured as described above, when the 2 nd power supply is abnormal, the 2 nd power supply is cut off from the 2 nd microcomputer, the power supply from the 1 st power supply to the 1 st microcomputer is stopped, and the power supply from the 1 st power supply to the 2 nd microcomputer is stopped. This makes it possible to perform a fail operation even when the 2 nd power supply is abnormal while suppressing an increase in the power supply capacity of the vehicle control device.
ADVANTAGEOUS EFFECTS OF INVENTION
According to the present invention, in the vehicle control device, it is possible to perform the fail operation even when the control system power supply is abnormal while suppressing an increase in the power supply capacity.
Drawings
Fig. 1 is a schematic configuration diagram of an entire stereo camera as an example of a vehicle control device according to an embodiment of the present invention.
Fig. 2 is a schematic circuit configuration diagram of a power supply portion of the stereo camera according to embodiment 1 of the present invention.
Fig. 3 is a flowchart showing an operation when an abnormality occurs in the power supply of the control system of the stereo camera according to embodiment 1 of the present invention.
Fig. 4 is a schematic circuit configuration diagram of a power supply portion of the stereo camera according to embodiment 2 of the present invention.
Fig. 5 is a flowchart showing an operation when an abnormality occurs in the power supply of the control system of the stereo camera according to embodiment 2 of the present invention.
Fig. 6 is a schematic circuit configuration diagram showing a power supply portion of the stereo camera according to embodiment 3 of the present invention.
Fig. 7 is a flowchart showing an operation when an abnormality occurs in the power supply of the control system of the stereo camera according to embodiment 3 of the present invention.
Fig. 8 is a schematic circuit configuration diagram showing a power supply portion of the stereo camera according to embodiment 4 of the present invention.
Detailed Description
Next, a vehicle control device according to an embodiment of the present invention will be described with reference to the drawings by taking a stereo camera as an example. In the drawings, the same components are denoted by the same reference numerals, and overlapping description thereof will be omitted as appropriate.
Example 1
Embodiment 1 of the present invention will be described with reference to fig. 1 to 3.
Fig. 1 is a schematic configuration diagram of the entire stereo camera as an example of a vehicle control device of the present embodiment, and fig. 2 is a schematic circuit configuration diagram of a power supply portion of the stereo camera of the present embodiment.
As shown in fig. 1 or 2, the stereo camera 1 includes: image pickup elements (sensors) 11 and 12 that acquire external information; a recognition system microcomputer (1 st microcomputer) 14 that processes the external information transmitted from the image pickup devices 11 and 12 and outputs three-dimensional objects such as people and vehicles and lane information; a control system microcomputer (2 nd microcomputer) 15 that generates and outputs a vehicle control instruction based on the information; a CAN transceiver 18 for communicating a control command of the control system microcomputer 15 with an external device such as an ECU; an identification system power supply (1 st power supply) 13 that supplies electric power to the identification system microcomputer 14 via an identification system power supply line (1 st power supply line) 31; a control system power supply (2 nd power supply) 17 including a power supply unit 19 and an abnormality detection circuit 20, the power supply unit 19 supplying power to the control system microcomputer 15 via a control system power supply line (2 nd power supply line) 27, the abnormality detection circuit 20 detecting an abnormality of the power supply; a common potential supply circuit 16 provided in a power supply branch line (3 rd power supply line) 33 that branches from the identification system power supply line 31 and is connected to the control system power supply line 27; and a control circuit 21 that receives an error signal from the abnormality detection circuit 20 via a power supply error signal line 29 and controls ON/OFF of switching elements SW1 to SW3 described later or a drive signal of the common potential supply circuit 16.
As shown in fig. 2, the voltage applied to the identification system power supply line 31 is 5V, and the voltage applied to the control system power supply line 27 is 3.3V. That is, the voltage of the control system power supply line 27 is higher than the voltage of the identification system power supply line 31. Therefore, the power supply branch line 33 is provided with the booster circuit 26 for equalizing the voltage (3.3V) of the identification system power supply line 31 to the voltage (5.0V) of the control system power supply line 27. The booster circuit 26 includes a capacitor 23, a diode 24, a coil 25, a switching element SW4, and a control circuit 22, and the control circuit 22 performs ON/OFF control of the switching element SW4 while monitoring the voltage of the control system power supply line 27 (the output voltage of the control system power supply 17) via a power supply monitoring line 28. The booster circuit 26 and the switching element (3 rd switch) SW3 constitute the same potential supply circuit 16.
When the control system power supply 17 is normal, the switching element (2 nd switch) SW1 is turned ON to supply power to the control system microcomputer 15. On the other hand, when the regulator circuit 21 receives a signal from the abnormality detection circuit 20 via the power supply error signal line 29, the switching element SW1 is turned OFF, and the control system power supply 17 in which an abnormality has occurred is shut OFF.
When the control system power supply 17 is normal, the switching element (1 st switch) SW2 is turned ON to supply power to the recognition system microcomputer 14. On the other hand, when the regulator circuit 21 receives a signal from the abnormality detection circuit 20 via the power supply error signal line 29, the switching element SW2 is turned OFF, and the recognition system power supply 13 is turned OFF.
When the control system power supply 17 is normal, the switching element SW3 is turned OFF to separate the control system power supply line 27 from the identification system power supply line 31. ON the other hand, when the regulating circuit 21 receives a signal from the abnormality detecting circuit 20 via the power supply error signal line 29, the switching element SW3 is switched to the ON state, the control system power supply line 27 is made conductive with the identification system power supply line 31, and the power generated by the identification system power supply 13 can be supplied to the control system microcomputer 15.
In the present embodiment, the common potential supply circuit 16 has the following functions: when the control system power supply 17 is normal, the power supply branch line 33 is disconnected to cut off the control system power supply line 27 and the recognition system power supply line 31, when the control system power supply 17 is abnormal, the control system power supply line 27 and the recognition system power supply line 31 are connected through the power supply branch line 33, and the voltage supplied from the recognition system power supply line 31 is adjusted so as to become the same potential as the voltage supplied to the control system power supply line 27 at the time of normal.
The identification system power supply 13 that supplies power to the identification system microcomputer 14 at normal times can be used as power supply means for the control system microcomputer 15 in the case where an abnormality occurs in the control system power supply 17 by the equipotential supply circuit 16. Thus, even if an abnormality occurs in the control system power supply 17 without increasing the power supply that does not operate in the normal state, the control system microcomputer 15 can be operated to perform a malfunction operation.
Fig. 3 shows the operation of the stereo camera 1 when an abnormality occurs in the control system power supply 17. When the control system power supply 17 is normal, the voltage boosting circuit 26 and the identification system power supply line 31 are disconnected by the switching element SW3, but when the abnormality detection circuit 20 of the control system power supply 17 detects an abnormality of the power supply unit 19, the abnormality detection circuit 20 transmits an error signal to the regulator circuit 21 (step S11). The management circuit 21 drives the booster circuit 26 by ON/OFF controlling the switching element SW3 via the control circuit 22 (step S12). Thereby, the control system power supply line 27 is electrically connected to the identification system power supply line 31. Next, the switching element SW2 is turned OFF, and the recognition system microcomputer 14 is disconnected from the recognition system power supply 13 (step S13). Then, the switching element SW1 is turned OFF, and the control system power supply 17 in which the abnormality has occurred is shut OFF from the control system microcomputer 15 (step 14). Thus, the output voltage (3.3V) of the recognition system power supply 13 is boosted to 5.0V by the booster circuit 26 and supplied to the control system microcomputer 15, so that the control system microcomputer 15 can be operated even when the control system power supply 17 is abnormal. Thereafter, the vehicle is controlled by the control system microcomputer 15 to ensure safety (step S15).
With the present embodiment configured as described above, in the stereo camera 1 in which the operating voltage of the control system power supply 17 is lower than the operating voltage of the recognition system power supply 13, when an abnormality occurs in the control system power supply 17, the recognition system power supply 13 is disconnected from the recognition system microcomputer 14, and power is supplied from the recognition system power supply 13 to the control system microcomputer 15 while power supply from the recognition system power supply 13 to the recognition system microcomputer is stopped. Thus, even when the control system power supply 17 is abnormal without doubling the control system power supply 17, communication between the control system microcomputer 15 and the vehicle is ensured, and therefore, a malfunction operation can be achieved.
Further, when the control system power supply 17 is abnormal, since electric power is not supplied to the identification system microcomputer 14 which is unnecessary in communication with the vehicle, it is not necessary to increase the capacity of the identification system power supply 13. This can reduce the cost and the substrate area as compared with a circuit configuration in which power is supplied from the recognition system power supply 33 to the 2 microcomputers 14 and 15 when the control system power supply 17 is abnormal, or a circuit configuration in which the control system power supply 17 is duplicated.
Example 2
Fig. 4 is a schematic circuit configuration showing a power supply portion of the stereo camera 1 according to the present embodiment. In the present embodiment, the voltage applied to the identification system power supply line 31 of the identification system microcomputer 14 is 1.25V, and the voltage applied to the control system power supply line 27 of the control system microcomputer 15 is 3.3V. That is, the voltage of the control system power supply line 27 is lower than the identification system power supply line 31. For this purpose, the power supply branch line 33 is provided with a voltage step-down circuit 32 for equalizing the voltage (3.3V) of the identification system power supply line 31 with the voltage (1.25V) of the control system power supply line 27. The step-down circuit 32 has a capacitor 23, a diode 24, a coil 25, a switching element SW4, and a control circuit 22 that performs ON/OFF control of the switching element SW 4. The common potential supply circuit 16 in the present embodiment is constituted by a switching element SW3 and a step-down circuit 32.
Fig. 5 shows the operation of the stereo camera 1 when an abnormality occurs in the control system power supply 17. When the control system power supply 17 is normal, the step-down circuit 32 is turned off by the switching element SW4, but the abnormality detection circuit 20 of the control system power supply 17 detects an abnormality of the power supply unit 19, the abnormality detection circuit 20 transmits an error signal to the regulator circuit 21 (step S21). The regulating circuit 21 drives the voltage-decreasing circuit 32 via the control circuit 22 (step S22). Thereby, the control system power supply line 27 is electrically connected to the identification system power supply line 31. Subsequently, the switching element SW2 is turned OFF, and the recognition system microcomputer 14 is disconnected from the recognition system power supply 13 (step S23). Then, the switching element SW1 is turned OFF, and the control system power supply 17 in which the abnormality has occurred is shut OFF from the control system microcomputer 15 and the voltage-reducing circuit 32 (step S24). Thus, since the output voltage (3.3V) of the identification system power supply 13 is stepped down to 1.25V by the step-down circuit 32 and supplied to the control system microcomputer 15, the control system microcomputer 15 can be operated even when the control system power supply 17 is abnormal. Thereafter, the vehicle is controlled by the control system microcomputer 15, and safety is ensured (step S25).
With the present embodiment configured as described above, the same effects as those of embodiment 1 can be obtained in the stereo camera 1 in which the operating voltage of the control system microcomputer 15 is lower than the operating voltage of the recognition system microcomputer 14.
Example 3
Fig. 6 shows a schematic circuit configuration of a power supply portion of the stereo camera 1 according to the present embodiment. In the present embodiment, the voltage applied to the control system power supply line 27 of the identification system microcomputer 14 is 3.3V, and the voltage applied to the identification system power supply line 31 of the control system microcomputer 15 is 3.3V. That is, the voltage of the control system power supply line 27 is at the same potential as the voltage of the identification system power supply line 31, and the voltage of the identification system power supply line 31 can be supplied to the control system power supply line 27 without being changed. Therefore, the common potential supply circuit 16 of the present embodiment is constituted only by the switching element SW3 that switches on and off of the power supply branch line 33.
Fig. 7 shows the operation of the stereo camera 1 when an abnormality occurs in the control system power supply 17. When the control system power supply 17 is normal, the control system power supply line 27 and the recognition system power supply line 31 are disconnected by the SW3, but when the abnormality detection circuit 20 of the control system power supply 17 detects an abnormality of the power supply section 19, the abnormality detection circuit 20 transmits an error signal to the management circuit 21 (step S31). The management circuit 21 turns ON the switching element SW3 to connect the control system power line 27 and the identification system power line 31 (step S32). Subsequently, the switching element SW2 is turned OFF, and the recognition system microcomputer 14 is disconnected from the recognition system power supply 13 (step S33).
Then, the switching element SW1 is turned OFF, and the control system power supply 17 in which the abnormality has occurred is shut OFF from the control system microcomputer 15 (step S34). Thus, since the output voltage (3.3V) of the recognition system power supply 13 is supplied to the control system microcomputer 15, the control system microcomputer 15 can be operated even when the control system power supply 17 is abnormal. Thereafter, the vehicle is controlled by the control system microcomputer 15 to ensure safety (step S35).
With the present embodiment configured as described above, in the stereo camera 1 in which the operating voltage of the control system microcomputer 15 and the operating voltage of the recognition system microcomputer 14 are at the same potential, the same effects as those in embodiment 1 are obtained.
Example 4
Embodiment 4 of the present invention will be described with reference to fig. 8.
Fig. 8 shows a schematic circuit configuration of a power supply portion of the stereo camera 1 according to the present embodiment. The control system power supply 17 in this embodiment does not have the abnormality detection circuit 20 (shown in fig. 2) in embodiment 1. The control system microcomputer 15 monitors the output voltage of the control system power supply 17 via a power supply monitor line 34 branched from the control system power supply line 27, and notifies the supervisor circuit 21 of an abnormality of the control system power supply 17.
With the present embodiment configured as described above, the same effects as those of embodiment 1 can be obtained in the stereo camera 1 in which the control system power supply 17 does not have an abnormality detection circuit. In addition, although the configuration in which the abnormality detection function of the control system power supply 17 is mounted on the control system microcomputer 15 is described in the present embodiment, the function of the regulator circuit 21 may be mounted on the control system microcomputer 15.
Although the embodiments of the present invention have been described in detail, the present invention is not limited to the embodiments described above, and various modifications and application examples are also included. For example, the above-described embodiments are intended to explain the present invention in a manner that is easy to understand, and are not necessarily limited to having all the configurations explained. Further, the structure of one embodiment may be added to the structure of another embodiment, a part of the structure of one embodiment may be deleted, or a part of the structure of another embodiment may be replaced.
Description of the symbols
1 … stereo camera (vehicle control device), 11, 12 … image pickup element (sensor), 13 … identification system power supply (1 st power supply), 14 … identification system microcomputer (1 st microcomputer), 15 … control system computer (2 nd microcomputer), 16 … common potential supply circuit, 17 … control system power supply (2 nd power supply), 18 … CAN transceiver, 19 … power supply section, 20 … abnormality detection circuit, 21 … management circuit, 22 … control circuit, 23 … capacitor, 24 … diode, 25 … coil, 26 … boost circuit, 27 … control system power supply line (2 nd power supply line), 28 … voltage monitor line, 29 … power supply error signal line, 30 … control circuit drive signal line, 31 … identification system power supply line (1 st power supply line), 32 … step-down circuit, 33 … power branch line, 34 … power supply monitor line, SW1 … switching element (2 nd switch), SW2 … switching element (1 st switch), SW3 … switching element (3 rd switch).
Claims (7)
1. A vehicle control device is provided with:
a sensor;
a 1 st microcomputer which receives and processes signals from the sensor;
a 2 nd microcomputer that generates a vehicle control instruction according to a processing result of the 1 st microcomputer;
a 1 st power supply that supplies power to the 1 st microcomputer;
a 2 nd power supply that supplies power to the 2 nd microcomputer;
a 1 st power line connecting the 1 st microcomputer and the 1 st power supply;
a 2 nd power line connecting the 2 nd microcomputer and the 2 nd power supply;
a 1 st switch disposed on the 1 st power line and switching the 1 st microcomputer and the 1 st power supply on and off; and
a 2 nd switch disposed on the 2 nd power line and switching the 2 nd microcomputer and the 2 nd power supply on and off,
the vehicle control device is characterized by comprising:
a 3 rd power line connecting the 1 st power line and the 2 nd power line; and
and a common potential supply circuit provided in the 3 rd power supply line, for disconnecting the 3 rd power supply line when the 2 nd power supply is normal, and for supplying a voltage having a common potential with an output voltage of the 2 nd power supply from the 1 st power supply to the 2 nd microcomputer in a state where the 1 st switch and the 2 nd switch are disconnected when the 2 nd power supply is abnormal.
2. The vehicle control apparatus according to claim 1,
the output voltage of the 2 nd power supply is at the same potential as the output voltage of the 1 st power supply,
the common potential supply circuit includes a 3 rd switch, and the 3 rd switch is provided in the 3 rd power supply line and switches between on and off of the 1 st power supply line and the 2 nd power supply line.
3. The vehicle control apparatus according to claim 1,
the output voltage of the 2 nd power supply is lower than the output voltage of the 1 st power supply,
the common potential supply circuit includes a step-down circuit that is provided in the 3 rd power supply line and steps down the voltage of the 1 st power supply line to the output voltage of the 2 nd power supply.
4. The vehicle control apparatus according to claim 1,
an output voltage of the 2 nd power supply is higher than an output voltage of the 1 st power supply;
the common potential supply circuit includes:
a booster circuit that is provided on the 3 rd power supply line and boosts the voltage of the 1 st power supply line to the output voltage of the 2 nd power supply; and
and a 3 rd switch, wherein the 3 rd switch is arranged at a part connecting the booster circuit of the 3 rd power line and the 1 st power line, and switches the connection and disconnection of the booster circuit and the 1 st power line.
5. The vehicle control apparatus according to claim 1,
the 2 nd power supply has an abnormality detection circuit that detects an abnormality of the 2 nd power supply.
6. The vehicle control apparatus according to claim 1,
the 2 nd microcomputer has a function of monitoring an output voltage of the 2 nd power supply.
7. The vehicle control apparatus according to claim 1,
the sensor is a camera element for identifying the outside;
the 1 st microcomputer is a recognition system microcomputer which receives a signal from the image pickup element and acquires information on a three-dimensional object or a lane.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018-028268 | 2018-02-20 | ||
| JP2018028268 | 2018-02-20 | ||
| PCT/JP2019/003778 WO2019163492A1 (en) | 2018-02-20 | 2019-02-04 | Vehicle control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111699601A true CN111699601A (en) | 2020-09-22 |
Family
ID=67688105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201980012568.6A Pending CN111699601A (en) | 2018-02-20 | 2019-02-04 | Vehicle control device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6934556B2 (en) |
| CN (1) | CN111699601A (en) |
| WO (1) | WO2019163492A1 (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000312444A (en) * | 1999-04-26 | 2000-11-07 | Toyota Motor Corp | Power supply controller for vehicle |
| US20020171295A1 (en) * | 2001-05-21 | 2002-11-21 | Mitsubishi Denki Kabushiki Kaisha | Semiconductor integrared circuit |
| US20090140673A1 (en) * | 2005-07-06 | 2009-06-04 | Toyota Jidosha Kabushiki Kaisha | Electric power steering system |
| JP2009254187A (en) * | 2008-04-09 | 2009-10-29 | Hitachi Ltd | Double system power source |
| US20140225438A1 (en) * | 2011-11-01 | 2014-08-14 | Fujitsu Limited | Power switching apparatus, power supply unit, and computer system |
| JP2016128308A (en) * | 2015-01-09 | 2016-07-14 | トヨタ自動車株式会社 | Electric power unit |
| CN106458118A (en) * | 2014-05-12 | 2017-02-22 | 株式会社自动网络技术研究所 | Automobile power source device |
| US20180001850A1 (en) * | 2015-01-09 | 2018-01-04 | Autonetworks Technologies, Ltd. | Automotive power supply device and power box |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5730639B2 (en) * | 2011-03-28 | 2015-06-10 | 古河電気工業株式会社 | Electronic control device for vehicle and electronic control system for vehicle |
-
2019
- 2019-02-04 JP JP2020501648A patent/JP6934556B2/en active Active
- 2019-02-04 WO PCT/JP2019/003778 patent/WO2019163492A1/en active Application Filing
- 2019-02-04 CN CN201980012568.6A patent/CN111699601A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000312444A (en) * | 1999-04-26 | 2000-11-07 | Toyota Motor Corp | Power supply controller for vehicle |
| US20020171295A1 (en) * | 2001-05-21 | 2002-11-21 | Mitsubishi Denki Kabushiki Kaisha | Semiconductor integrared circuit |
| US20090140673A1 (en) * | 2005-07-06 | 2009-06-04 | Toyota Jidosha Kabushiki Kaisha | Electric power steering system |
| JP2009254187A (en) * | 2008-04-09 | 2009-10-29 | Hitachi Ltd | Double system power source |
| US20140225438A1 (en) * | 2011-11-01 | 2014-08-14 | Fujitsu Limited | Power switching apparatus, power supply unit, and computer system |
| CN106458118A (en) * | 2014-05-12 | 2017-02-22 | 株式会社自动网络技术研究所 | Automobile power source device |
| JP2016128308A (en) * | 2015-01-09 | 2016-07-14 | トヨタ自動車株式会社 | Electric power unit |
| US20180001850A1 (en) * | 2015-01-09 | 2018-01-04 | Autonetworks Technologies, Ltd. | Automotive power supply device and power box |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019163492A1 (en) | 2019-08-29 |
| JPWO2019163492A1 (en) | 2021-01-14 |
| JP6934556B2 (en) | 2021-09-15 |
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