Electronic control apparatus

• US 9,742,899 B2
• Filed: 10/22/2014
• Issued: 08/22/2017
• Est. Priority Date: 11/19/2013
• Status: Active Grant

• Current Assignee: DENSO Corporation
• Original Assignee: DENSO Corporation
• Inventors: Kumabe, Seigou
• Primary Examiner(s): Urban, Edward
• Assistant Examiner(s): Mathew, Max
• Application Number:
  US15/036,705
• Publication Number:
  US 20160352889A1
• Time in Patent Office: 1,035 Days
• CPC Class Codes: B60R 21/00 Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks safety belts or body harnesses in vehicles B60R22/00; devices, apparatus or methods for life-saving in general A62B; safety devices for propulsion unit control specially adapted for, or arranged in, vehicles B60K28/00; seats constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats, B60N2/42; energy-absorbing arrangements for hand wheels for steering vehicles B62D1/11; energy-absorbing arrangements for vehicle steering columns B62D1/19; harnessing in aircraft B64D25/00
• CPC Class Codes: G06F 9/48 Program initiating; Program switching, e.g. by interrupt
• CPC Class Codes: G06F 9/4887 involving deadlines, e.g. rate based, periodic
• CPC Class Codes: G08G 1/093 Data selection, e.g. prioritizing information, managing message queues, selecting the information to be output
• CPC Class Codes: G08G 1/163 involving continuous checking
• CPC Class Codes: H04B 1/3822 specially adapted for use in vehicles H04B1/3827 takes precedence
• CPC Class Codes: H04L 13/08 Intermediate storage means
• CPC Class Codes: H04L 67/12 specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
• CPC Class Codes: H04L 67/568 Storing data temporarily at an intermediate stage, e.g. caching
• CPC Class Codes: H04L 67/61 taking into account QoS or priority requirements
• CPC Class Codes: H04M 1/72415 for remote control of appliances
• CPC Class Codes: H04W 4/44 for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
• CPC Class Codes: H04W 4/46 for vehicle-to-vehicle communication [V2V]
• CPC Class Codes: H04W 4/48 for in-vehicle communication

Abstract

In an electronic control apparatus, a wireless data control section includes a wireless data reception section that moves wireless data stored in a first wireless data storage unit to an intermediate wireless data storage unit, and a wireless data management section that moves the wireless data stored in the intermediate wireless data storage unit to a second wireless data storage unit. An in-vehicle data control section includes an in-vehicle data reception section that moves in-vehicle data stored in a first in-vehicle data storage unit to an intermediate in-vehicle data storage unit. Herein, a process performed by the wireless data reception section takes precedence over a process performed by the in-vehicle data reception section and over a process performed by the wireless data management section.

Claims

1. An electronic control apparatus that is mounted in a vehicle and used to perform a control process based on wireless data and in-vehicle data, the wireless data being received by a radio that establishes wireless communication with at least either a different vehicle or a roadside unit, the in-vehicle data being generated by an in-vehicle instrument disposed in the vehicle, the electronic control apparatus comprising:

a radio control section that stores the wireless data inputted from the radio in a first wireless data storage unit;

an in-vehicle communication control section that stores the in-vehicle data inputted from the in-vehicle instrument in a first in-vehicle data storage unit;

a wireless data control section that stores the wireless data stored in the first wireless data storage unit in a second wireless data storage unit;

an in-vehicle data control section that stores the in-vehicle data stored in the first in-vehicle data storage unit in a second in-vehicle data storage unit; and

a control data generation section that generates control data, which is necessary for performing the control process, from the wireless data stored in the second wireless data storage unit and the in-vehicle data stored in the second in-vehicle data storage unit,

wherein;

the wireless data control section includes

a wireless data reception section that moves the wireless data stored in the first wireless data storage unit to an intermediate wireless data storage unit, and

a wireless data management section that moves the wireless data stored in the intermediate wireless data storage unit to the second wireless data storage unit;

the in-vehicle data control section includes an in-vehicle data reception section that moves the in-vehicle data stored in the first in-vehicle data storage unit to an intermediate in-vehicle data storage unit; and

a process performed by the wireless data reception section takes precedence over a process performed by the in-vehicle data reception section and over a process performed by the wireless data management section.

2. The electronic control apparatus according to claim 1, wherein:

the in-vehicle data control section further includes an in-vehicle data management section that moves the in-vehicle data stored in the intermediate in-vehicle data storage unit to the second in-vehicle data storage unit; and

a process performed by the in-vehicle data reception section takes precedence over a process performed by the in-vehicle data management section.

3. The electronic control apparatus according to claim 1, wherein:

the control data generation section generates the control data at a predetermined interval; and

the intermediate wireless data storage unit has a storage capacity that is determined based on the predetermined interval and an amount of data inputted per unit time from the radio to the radio control section,

the storage capacity being equal to or greater than an amount of data inputted from the radio to the radio control section during the predetermined interval.

4. The electronic control apparatus according to claim 3, wherein

the intermediate in-vehicle data storage unit has a storage capacity that is determined based on the predetermined interval and an amount of data inputted per unit time from the in-vehicle instrument to the in-vehicle communication control section,

the storage capacity being equal to or greater than an amount of data inputted from the in-vehicle instrument to the in-vehicle communication control section during the predetermined interval.

5. An electronic control apparatus that is mounted in a vehicle and used to perform a control process based on wireless data and in-vehicle data, the wireless data being received by a radio that establishes wireless communication with at least either a different vehicle or a roadside unit, the in-vehicle data being generated by an in-vehicle instrument disposed in the vehicle, the electronic control apparatus comprising:

a radio control section that stores the wireless data inputted from the radio in a first wireless data storage unit;

an in-vehicle communication control section that stores the in-vehicle data inputted from the in-vehicle instrument in a first in-vehicle data storage unit;

a wireless data control section that stores the wireless data stored in the first wireless data storage unit in a second wireless data storage unit;

an in-vehicle data control section that stores the in-vehicle data stored in the first in-vehicle data storage unit in a second in-vehicle data storage unit; and

a control data generation section that generates control data, which is necessary for performing the control process, from the wireless data stored in the second wireless data storage unit and the in-vehicle data stored in the second in-vehicle data storage unit,

wherein;

the wireless data control section includes

a wireless data reception section that moves the wireless data stored in the first wireless data storage unit to an intermediate wireless data storage unit, and

a wireless data management section that moves the wireless data stored in the intermediate wireless data storage unit to the second wireless data storage unit;

the in-vehicle data control section includes an in-vehicle data reception section that moves the in-vehicle data stored in the first in-vehicle data storage unit to an intermediate in-vehicle data storage unit; and

a process performed by the wireless data reception section takes precedence over a process performed by the in-vehicle data reception section and over a process performed by the wireless data management section

wherein;

the electronic control apparatus performs a control process based on a plurality of different types of data including the wireless data and the in-vehicle data;

the electronic control apparatus includes

a separate data source control section that stores separate data in a first separate data storage unit, the separate data being inputted from a separate data source, the separate data being the different types of data other than the wireless data and the in-vehicle data, and

a separate data control section that stores the separate data stored in the first separate data storage unit in a second separate data storage unit; and

the control data generation section generates the control data from the wireless data stored in the second wireless data storage unit, the in-vehicle data stored in the second in-vehicle data storage unit, and the separate data stored in the second separate data storage unit.

6. The electronic control apparatus according to claim 5, wherein

each of a process performed by the wireless data reception section and a process performed by the in-vehicle data reception section both takes precedence over a process performed by the separate data control section.

7. The electronic control apparatus according to claim 5, wherein

processes by the radio control section, the in-vehicle communication control section, the separate data source control section, the wireless data control section, the in-vehicle data control section, and the separate data control section are all executed by a single CPU.

8. The electronic control apparatus according to claim 5, wherein:

the in-vehicle data control section further includes an in-vehicle data management section that moves the in-vehicle data stored in the intermediate in-vehicle data storage unit to the second in-vehicle data storage unit; and

a process performed by the in-vehicle data reception section takes precedence over a process performed by the in-vehicle data management section.

9. The electronic control apparatus according to claim 5, wherein:

the control data generation section generates the control data at a predetermined interval; and

the intermediate wireless data storage unit has a storage capacity that is determined based on the predetermined interval and an amount of data inputted per unit time from the radio to the radio control section,

the storage capacity being equal to or greater than an amount of data inputted from the radio to the radio control section during the predetermined interval.

10. The electronic control apparatus according to claim 9, wherein

the intermediate in-vehicle data storage unit has a storage capacity that is determined based on the predetermined interval and an amount of data inputted per unit time from the in-vehicle instrument to the in-vehicle communication control section,

the storage capacity being equal to or greater than an amount of data inputted from the in-vehicle instrument to the in-vehicle communication control section during the predetermined interval.

11. An electronic control apparatus that is mounted in a vehicle and used to perform a control process based on wireless data and in-vehicle data, the wireless data being received by a radio that establishes wireless communication with at least either a different vehicle existing external to the vehicle or a roadside unit existing external to the vehicle, the in-vehicle data being generated by an in-vehicle instrument disposed internally in the vehicle, the electronic control apparatus comprising:

a radio control section that stores the wireless data inputted from the radio in a first wireless data storage unit;

an in-vehicle communication control section that stores the in-vehicle data inputted from the in-vehicle instrument in a first in-vehicle data storage unit;

a wireless data control section that stores the wireless data stored in the first wireless data storage unit in a second wireless data storage unit;

an in-vehicle data control section that stores the in-vehicle data stored in the first in-vehicle data storage unit in a second in-vehicle data storage unit; and

a control data generation section that generates control data, which is necessary for performing the control process, from the wireless data stored in the second wireless data storage unit and the in-vehicle data stored in the second in-vehicle data storage unit,

wherein

the wireless data control section includes

a wireless data reception section that performs a first process that moves the wireless data stored in the first wireless data storage unit to an intermediate wireless data storage unit, and

a wireless data management section that performs a second process that moves the wireless data stored in the intermediate wireless data storage unit to the second wireless data storage unit;

the in-vehicle data control section includes

an in-vehicle data reception section that performs a third process that moves the in-vehicle data stored in the first in-vehicle data storage unit to an intermediate in-vehicle data storage unit;

the first wireless data storage unit, the first in-vehicle data storage unit, the second wireless data storage unit, the second in-vehicle data storage unit, the intermediate wireless data storage unit, and the intermediate in-vehicle data storage unit are disposed differently from each other; and

the first process performed by the wireless data reception section takes precedence over the third process performed by the in-vehicle data reception section and, simultaneously, the first process performed by the wireless data reception section takes precedence over the second process performed by the wireless data management section.

12. The electronic control apparatus according to claim 11, wherein:

the in-vehicle data control section further includes an in-vehicle data management section that performs a fourth process that moves the in-vehicle data stored in the intermediate in-vehicle data storage unit to the second in-vehicle data storage unit; and

the first process performed by the in-vehicle data reception section takes precedence over the fourth process performed by the in-vehicle data management section.

13. The electronic control apparatus according to claim 11, wherein:

the control data generation section generates the control data at a predetermined interval; and

the intermediate wireless data storage unit has a storage capacity that is determined based on the predetermined interval and an amount of data inputted per unit time from the radio to the radio control section,

the storage capacity being equal to or greater than an amount of data inputted from the radio to the radio control section during the predetermined interval.

14. The electronic control apparatus according to claim 13, wherein

the intermediate in-vehicle data storage unit has a storage capacity that is determined based on the predetermined interval and an amount of data inputted per unit time from the in-vehicle instrument to the in-vehicle communication control section,

the storage capacity being equal to or greater than an amount of data inputted from the in-vehicle instrument to the in-vehicle communication control section during the predetermined interval.

15. The electronic control apparatus according to claim 11, wherein:

the electronic control apparatus performs a control process based on a plurality of different types of data including the wireless data and the in-vehicle data;

the electronic control apparatus includes

a separate data source control section that stores separate data in a first separate data storage unit, the separate data being inputted from a separate data source, the separate data being the different types of data other than the wireless data and the in-vehicle data, the separate data being data acquired from a satellite via an in-vehicle receiver to provide a current location of the vehicle, and

a separate data control section that performs a fifth process that stores the separate data stored in the first separate data storage unit in a second separate data storage unit; and

the control data generation section generates the control data from the wireless data stored in the second wireless data storage unit, the in-vehicle data stored in the second in-vehicle data storage unit, and the separate data stored in the second separate data storage unit.

16. The electronic control apparatus according to claim 15, wherein

each of the first process performed by the wireless data reception section and the third process performed by the in-vehicle data reception section both takes precedence over the fifth process performed by the separate data control section.

17. The electronic control apparatus according to claim 15, wherein

processes by the radio control section, the in-vehicle communication control section, the separate data source control section, the wireless data control section, the in-vehicle data control section, and the separate data control section are all executed by a single CPU.