47 results about "Program rewriting" patented technology

In an ECU, a flash ROM has a main storage area for storing a current version of an application program and a sub-storage area for storing update version program that includes updated points from the current version program. A rewriting tool executes program rewrite processing including: store processing of storing the update version program in the sub-storage area; and memory changeover processing in which, when the writing of the update version program in the sub-storage area has been done successfully, the sub-storage area where the storing of the update version program has ended is changed over to a new main storage area instead of a memory area currently being used as the main storage area. When the writing in the sub-storage area has failed, the changeover is not conducted.

Program data stored in the recording medium of a general control apparatus coupled to a network is stored in the recording medium of a control apparatus as a rewritten subject of program data in the following manner. First, program data 21 stored in a recording medium 12b contained within the general control apparatus 12 is sent via the network 15 of a vehicle to the recording medium 13a of a second control apparatus 13 as the rewritten subject of program data (see a path L1). In this case, the program data 21 stored in the recording medium 12b contained in the general control apparatus 12 for generally controlling the control apparatuses 13, 14 is sent to the network 15 of the vehicle when it is determined to be optimum by the CPU 12c of the general control apparatus 12. The program data sent to the network 15 of the vehicle is sent via the network 15 of the vehicle to the second control apparatus 13 as the rewritten subject of program data. Then, the second control apparatus 13 as the rewritten subject of program data stores the program data 21 sent via the network 15 of the vehicle into the recording medium 13a.

A method of rewriting a flash EEPROM of an electronic control device for controlling a vehicle equipment via a microcomputer is proposed. The flash EEPROM stores a control program and a flash EEPROM rewriting program. The operation of the vehicle equipment is changed by changing the control program via a microcomputer. When receiving a control-program-rewriting command signal, data on an internal condition and state of connection of the microcomputer are memorized. Then, the control program is changed to the flash EEPROM rewriting program, so that the data are read according to the flash EEPROM rewriting program to control the microcomputer to operate in the same internal condition and state of connection thereof as before. Thereafter, the microcomputer rewrites the flash EEPROM with a new control program sent from outside. Therefore, the vehicle equipment can be continuously operated by a user during the rewriting mode.

The invention provides a program rewriting system (10) for vehicles. A rewriting device (54) of the program rewriting system (10) for the vehicles receives a plurality of pieces of rewriting data each including a rewriting program and also receives information of combination suitability determination used for determining whether the combination of the plurality of pieces of rewriting data is suitable or not. The rewriting device (54) then uses the information of combination suitability determination to determine whether the combination of the plurality of pieces of rewriting data is suitable or not. If having determined that the combination is suitable, the rewriting device (54) executes the rewriting of the programs of a plurality of electronic control devices (56a-56d).

In a vehicular program rewriting system (1), a vehicular master device (11) is provided with: a first progress state determining unit (88a) for determining a first progress state relating to rewriting of a program; a first progress state transmitting unit (88b) for transmitting the first progress state determined by the first progress state determining unit to a center device; a second progress state acquiring unit (88c) for acquiring a second progress state relating to the rewriting of the program from the center device; and a first display instructing unit (88d) for instructing the creation of content capable of being displayed on a display terminal mounted in a vehicle, on the basis of the first progress state determined by the first progress state determining unit, and the second progress state acquired by the second progress state acquiring unit.

A method, system, and article of manufacture are disclosed for transforming a service process definition. This service process definition is comprised of computer readable code. The method comprises the steps of expressing a given set of assumptions in a computer readable code; and transforming said process definition by using a processing unit to apply said assumptions to said process definition to change the configuration of the process definition. The process definition may be transformed by using factors relating to the specific context in or for which the process definition is executed. Also, the process definition may be transformed by identifying, in a flow diagram for the service process definition, flows to which the assumptions apply, and applying program rewriting techniques to those identified flows.

A rewriting apparatus of a vehicle program rewriting system predicts, on the basis of both a state of a battery at the time of starting rewriting the programs of ECUs and a scheduled process time period of rewiring the programs, a state of the battery after rewriting the programs, and executes rewriting the programs if the predicted state of the battery satisfies a condition on which the vehicle can be restarted.

A system is communicably coupled to an external device at least when rewriting, at least in a module, a first application program stored in a first memory of the system into a second application program stored in the external device. In the system, a receiving unit is configured to receive an identifier sent from the external device. The identifier decides a sending timing of the second application program from the external device. In the system, an identification unit is configured to identify that write target data sent from the external device is at least a module of the second application program after the identifier is received by the receiving unit.