Ngk Spark Plug Company, Limited

Toyota Boshoku Kabushiki Kaisha

Yasuhiro Ishiguro

Akihiro Kobayashi

Satoru Abe

Takayuki Sumi

Katsunori Yazawa

Yuji Kimoto

Hiroki Abe

Osamu Kawase

Yuki Kamiya

Tomohisa Terui

Kazuhisa Fujibayashi

Yu Akiyama

Hiroshi Inagaki

Koji Shiotani

Hisashi Sasaki

Shoji Akatsuka

Kouji Ogawa

Shinji Kumazawa

Keiichi Noda

Keiji Suzuki

Hideki Uno

Hideya Inukai

Tetsuma Shimozato

Junko Shima

Ryuta Fukano

Keiichi Nodo

Ayaka Ota

A mobile terminal communication system for a vehicle that enables pairing between a mobile terminal and a seat while inhibiting an increase in equipment installed in the seat is provided. In one aspect of the disclosure, the system includes seats that each configured to output first information in relation to a motion of an occupant; and a processor that communicates with the seats and a mobile terminal possessed by a person in the vehicle. The processor includes a comparison processing device that estimates a control-target seat, on which the person is seated, among the seats by comparing the first information outputted by each seat with second information in relation to the motion of the person outputted by the mobile terminal; and a pairing processing device that pairs the estimated control-target seat with the mobile terminal and to transmit an output of the paired mobile terminal to the control-target seat.

Mobile terminal communication system for vehicle and vehicle seat

The control device includes: a detection unit that detects a predetermined speech/motion of a user who is present in an output destination space of a directional speaker; an identification unit that identifies, in accordance with the predetermined speech/motion, an audio source of interest among audio sources and a directional speaker as an object to be controlled; and an output control unit that causes the identified directional speakers to output audio supplied from the identified audio source.

Control device, control method, and control program

A sensor including a sensor element, a metallic shell, a terminal fitting, a cylindrical case, lead wires, a connector portion, and a cylindrical heat shield tube. The heat shield tube includes a first tube and a second tube. The second tube is disposed on a distal end side of the first tube and covers an outer surface of the rear end side of the case, while providing an overlapping portion that overlaps the first tube. A rear end side of the first tube is adjacent to the connector portion. A total length T of the heat shield tube and a length S of the overlapping portion satisfy T/10&#x2264;S&#x2264;T/5. Further, a length Lof the first tube and a length Lof the second tube satisfy T/2&#x2264;L&#x3c;L

Sensor

Disclosed is a sensor, including: a sensor body having a cylindrical case and a sensor element accommodated in the case; a seal member disposed in a rear end part of the case; lead wires electrically connected to the sensor element and extending from inside to outside of the casing through the seal member; and a cylindrical heat shield tube retained to an outer surface of the case and extending rearward from the case so as to circumferentially surround the seal member and parts of the lead wires, characterized in that: the sensor further includes a cylindrical tube cap made of an elastic material and arranged to restrict a rearward movement of the heat shield tube; the tube cap has formed therein at least one lead wire insertion hole through which the lead wires are inserted; and the tube cap is reduced in diameter and held to the lead wires.

Sensor having tube cap restricting rearward movement of heat shield tube

A gas sensor control apparatus () includes first current detection means for detecting a first pump current flowing between second electrodes () in a state in which an object gas has become a prescribed gas supply state, the temperature of a sensor section () has become a first target temperature, and the voltage between first electrodes () has become a first target voltage; second current detection means for detecting a second pump current flowing between the second electrodes in a state in which the object gas has become the prescribed gas supply state, the temperature of the sensor section has become a second target temperature, and the voltage between the first electrodes has become a second target voltage; and HO gas concentration detection means for detecting the HO gas concentration of the object gas on the basis of the first and second pump currents.

Gas sensor control device

A gas sensor control device for controlling a gas sensor, the gas sensor including a gas sensor element that includes a cell including a pair of electrodes and a solid electrolyte, the gas sensor control device including a circuit board connectable to the gas sensor. The circuit board has mounted thereon a voltage control unit mounted on the circuit board and configured to control a voltage developed across a pair of electrodes of the cell to a constant voltage; a temperature detecting unit mounted on the circuit board and configured to detect a temperature of the circuit board; and a voltage correcting unit mounted on the circuit board and configured to apply a correction voltage to the voltage control unit compensating for a temperature-dependent variation in the constant voltage based on the temperature detected by the temperature detecting unit.

An NOsensor control apparatus () is connected to an NOsensor () which includes a first pumping cell () and a second pumping cell () through which a second pumping current flows corresponding to an NOconcentration in a to-be-measured gas. The NOsensor control apparatus () includes a first pumping current detection unit; a second pumping current detection unit; an oxygen concentration calculation unit () for calculating oxygen concentration on the basis of the first pumping current and corrected in accordance with the pressure of the to-be-measured gas, oxygen (first) pressure correction information set for the NOsensor, and pressure information; and an NOconcentration calculation unit () for calculating NOconcentration on the basis of the first pumping current and corrected in accordance with pressure of the to-be-measured gas, NO(second) pressure correction information set for the NOsensor, and pressure information.

[object Object]

A gas sensor control apparatus () for a gas sensor () including an electromotive force cell () and a pump cell () includes current control means () for feedback-controlling the pump current Ip, voltage setting means S, Sfor setting a target voltage Vr to either of first and second target voltage Vrand Vr, and constant group setting means S, Sfor setting a group of feedback control constants to a first group Kpidwhen the target voltage is Vrand to a second group Kpidwhen the target voltage is Vr. The second group Kpidis determined such the pump current Ip becomes stable more quickly as compared with the case where the first group of control constants Kpidcontinues to be used.

Gas sensor control apparatus

There is provided a controller for controlling a vehicle device, which includes a circuit board having mounted thereon a control circuit that controls operations of the vehicle device, a first temperature sensor mounted on a first specific region of the circuit board to output a first signal responsive to a temperature of the first specific region of the circuit board and a second temperature sensor mounted on a second specific region of the circuit board to output a second signal responsive to a temperature of the second specific region of the circuit board. The control circuit has an anomaly detection portion that judges the occurrence or non-occurrence of an output anomaly in the first temperature sensor based on the first and second signals of the first and second temperature sensors.

Vehicle device controller and temperature sensor anomaly detection method therefor

An oxygen sensor control apparatus () obtains a correction coefficient for calibrating the relation between oxygen concentration and an output value of an oxygen sensor (), when a fuel cut operation of an internal combustion engine () is performed. The apparatus includes average output value calculation means; inter-fuel-cut average output value calculation means; and correction coefficient calculation means.

Sensor control apparatus

An occupant detection system includes a detection electrode provided in a vehicle seat, a phase difference measuring unit, a direct current measuring unit, and a detecting unit that detects an occupant. The phase difference measuring unit supplies a reference signal comprising a sinusoidal wave to the detection electrode via a resistive element, detects the potential of the detection electrode as an electrode signal, and measures a phase lag time of the electrode signal relative to the reference signal. The direct current measuring unit applies a steady DC voltage to the detection electrode via a resistive element, detects the potential of the detection electrode, and measures time it takes from start of application of the DC voltage to the time when the detection electrode reaches a given potential, as a charge time. The detecting unit detects an occupant based on the phase lag time and the charge time.

Hybrid occupant detection system

A sensor control circuit unit () includes a circuit board () which has opposite sides () and () facing in parallel with each other, and carries a signal detection circuit () for receiving a detection signal whose level is equal to or less than one &#x3bc;A and which changes in accordance with NOconcentration, a power supply circuit (), and a heater circuit () for controlling a heater. The power supply circuit () and the heater circuit () are mounted on one side of the circuit board () toward one side () of the opposite sides, and the signal detection circuit () is mounted in a mounting area on the other side of the circuit board () toward the other side () of the opposite sides, the mounting area being different from a mounting area of the circuits () and (). A ground conductor () connected to the ground is continuously formed on a surface of the circuit board () on which the signal detection circuit () is mounted such that the ground conductor () extends along at least the other of the opposite sides.

Sensor control unit and gas detection apparatus

In an oxygen sensor control apparatus, after start of fuel cut, the weighted average Ipd of corrected values obtained by multiplying the output value of a mounted oxygen sensor by a correction coefficient Kp is obtained as a representative value Ipe, representing the corrected values in the fuel cut period (S). In the case where the number of times the representative value Ipe is continuously judged not to fall outside a second range (S: NO) and to fall outside a first range (S: YES) reaches 10 (a first number of times) (S: YES), a new correction coefficient Kp is computed (S). In the case where the number of times the representative value Ipe is continuously judged to fall outside the second range (S: YES) reaches 4 (a second number of times smaller than the first number of times) (S: YES), a new correction coefficient Kp is computed (S).

Oxygen sensor control apparatus

There is provided a control device for a gas sensor. The gas sensor is formed with first and second oxygen pumping cells to define first and second measurement chambers. Under the control of the sensor control device, the first and second oxygen pumping cells effect oxygen pumping actions against the first and second measurement chambers, respectively. The sensor control device is configured to detect currents through the first and second oxygen pumping cells, calculate a correction coefficient by comparison of a detection value of the first oxygen pumping cell current at a known oxygen concentration period with a previously stored reference value, correct the first oxygen pumping cell current by the correction coefficient and determine the concentration of nitrogen oxide in the gas under measurement based on the corrected first oxygen pumping cell current and the detected second oxygen pumping cell current.

Gas sensor control device and nitrogen oxide concentration detection method

A sensor control device, and a gas sensor and sensor control device for applying a voltage to a sensor element of the gas sensor including an oxygen ion conductor and a pair of electrodes formed on the oxygen ion conductor of the gas sensor. The sensor control device includes a potential output terminal electrically connected to one of the pair of electrodes and a potential reference terminal electrically connected to the other of the pair of electrodes constituting the sensor element. The sensor control device applies a target voltage to the sensor element via the potential output terminal, corrected to take into account variation in the potential of the potential reference terminal.

Growing community of inventors

Komaki, Japan

Yasuhiro Ishiguro