摘要:
An apparatus for detecting a failure in a bearing has an acoustic emission sensor which detects acoustic emission from the bearing and outputs signals indicative of power of the acoustic emission, a bandpass filter which passes only signals in the range of from 100 kHz to 500 kHz out of the signals received from the aforementioned sensor, and a comparator which compares each of the signals in the range of from 100 kHz to 500 kHz extracted by the bandpass filter with a predetermined threshold value and outputs event signals each of which expresses that the signal from the bandpass filter exceeds the threshold value. This apparatus also has a computer which receives the event signals from the comparator, determines time intervals in which the event signals occur, totals the number of event signals for respective timer intervals, and determines whether or not the number of totaled events exceeds a predetermined threshold value to determine a failure in the bearing.
摘要:
In an in-vehicle system, a portable terminal interprets a command intended by operation data operated by an occupant via a touch panel of a DA, and determines whether the interpreted command is a prohibition command, that is, whether execution of the command in an own device is prohibited. When the command is not a prohibition command, the portable terminal is caused to execute the command, and when it is a prohibition command, the DA is caused to execute the command.
摘要:
A program update device 1 that is provided in a vehicle in which a battery can be charged from the outside and updates a software program used in the vehicle includes a charging time acquiring unit 14 that acquires the charging time of the battery, an update time acquiring unit 15 that acquires the time required to update the program, a comparison unit 16 that compares the charging time acquired by the charging time acquiring unit 14 and the program update time acquired by the update time acquiring unit 15, and an update unit 20 that updates the program on the basis of the comparison result of the comparison unit 16. According to this structure, it is possible to appropriately determine a program which can be updated within the battery charging time and reliably update the program while the vehicle is being charged.
摘要:
A hydraulic operated valve includes an electromagnetic adsorption mechanism and a steel ball. In the electromagnetic adsorption mechanism, when a current is supplied, an adsorption plate is adsorbed by a solenoid. By this adsorption, a steel ball is pressed against an outer surface of a cam disc. The outer surface of the cam disc includes two steps. When the cam disc is rotated clockwise or counterclockwise, the pressed steel ball engages the two steps. Thus, the cam disc is detented. These two steps are configured such that when the cam disc is returned to a neutral position, the adsorption plate is separated from the solenoid against the pressing of the electromagnetic adsorption mechanism. Thus, the detent state of the cam disc is canceled.
摘要:
A hydraulic operated valve includes an electromagnetic adsorption mechanism and a steel ball. In the electromagnetic adsorption mechanism, when a current is supplied, an adsorption plate is adsorbed by a solenoid. By this adsorption, a steel ball is pressed against an outer surface of a cam disc. The outer surface of the cam disc includes two steps. When the cam disc is rotated clockwise or counterclockwise, the pressed steel ball engages the two steps. Thus, the cam disc is detented. These two steps are configured such that when the cam disc is returned to a neutral position, the adsorption plate is separated from the solenoid against the pressing of the electromagnetic adsorption mechanism. Thus, the detent state of the cam disc is canceled.
摘要:
In a vehicle network system, a plurality of ECUs are network-connected. The plurality of ECUs include a first ECU that has set therein a secret key from among the secret key and a public key that form a pair and are set on the basis of initialization processing performed when the vehicle network system is created, and a second ECU that has set therein the public key. The second ECU adds, to a transmission signal, an authentication keyword created from the public key and information capable of specifying the second ECU and transmits the transmission signal with the authentication keyword added thereto to the network. The first ECU acquires the authentication keyword and estimates the reliability of the communication signal on the basis of the acquired authentication keyword and the secret key.
摘要:
A portable communication terminal transmits a request signal that requests voice data representing an email message, to a server apparatus when the portable communication terminal receives the email that has been sent to the portable communication terminal, and the portable communication terminal transmits the voice data received from the server apparatus, to an in-vehicle equipment. A server apparatus converts an email message that has been sent to a portable communication terminal, into voice data in response to a request signal received from the portable communication terminal, and the server apparatus returns the voice data to the portable communication terminal. The in-vehicle equipment detects a position of a portable communication terminal in a cabin, and the in-vehicle equipment outputs a voice message converted only from voice data representing an email message received by the portable communication terminal located in a specific position in the cabin, inside the cabin of the vehicle.
摘要:
A program update device that is provided in a vehicle in which a battery can be charged from the outside and updates a software program used in the vehicle includes a charging time acquiring unit that acquires the charging time of the battery, an update time acquiring unit that acquires the time required to rewrite the program, a comparison unit that compares the charging time acquired by the charging time acquiring unit and the program rewrite time acquired by the update time acquiring unit, and an update unit that rewrites the program on the basis of the comparison result of the comparison unit. According to this structure, it is possible to appropriately determine a program which can be updated within the battery charging time and reliably update the program while the vehicle is being charged.
摘要:
A positioning system is configured such that an in-vehicle device includes an in-vehicle-side positioning unit that obtains in-vehicle-side positioning data that includes in-vehicle-side positioning coordinates representing positioned coordinates and a transmitting unit that transmits the in-vehicle-side positioning data obtained by the in-vehicle-side positioning unit to a portable terminal device. In addition, the portable terminal device includes a portable-side positioning unit that obtains portable-side positioning data that includes portable-side positioning coordinates representing positioned coordinates, a selecting unit that selects the in-vehicle-side positioning unit and/or the portable-side positioning unit based on a positioning environment, and a vehicle-position calculating unit that calculates a vehicle position based on positioning coordinates of a positioning unit selected by the selecting unit.
摘要:
In an in-vehicle system, a portable terminal interprets a command intended by operation data operated by an occupant via a touch panel of a DA, and determines whether the interpreted command is a prohibition command, that is, whether execution of the command in an own device is prohibited. When the command is not a prohibition command, the portable terminal is caused to execute the command, and when it is a prohibition command, the DA is caused to execute the command.