Abstract: An alighting assistance device D of the present disclosure may be a device moving a driver seat rearward in a case where a determination may be made that an occupant seated on the driver seat of a vehicle alights. The device may include a height changer which changes a height of a steering wheel, a sitting height acquirer which acquires a sitting height of the occupant, and a steering wheel controller 33 as one example of a height controller which controls the height changer such that the height of the steering wheel becomes lower as the sitting height acquired by the sitting height acquirer may be higher in the case where a determination is made that the occupant alights.

Abstract: A vehicle display control device provided in a vehicle is disclosed. The apparatus includes processing circuitry. The processing circuitry recognizes a traffic regulation mark indicating a traffic regulation provided on a traveling route of the vehicle. The processing circuitry controls a display device to display first content information and second content information in a display area in front of a driver's seat of the vehicle. The first content information indicates content of a regulation in an effective range indicated by the traffic regulation mark in a case where the vehicle enters the effective range of the regulation. The second content information indicates content other than the first content information. The processing circuitry controls display of the first content information and the second content information in the display area on the basis of priorities set for the first content information and the second content information.

Abstract: A vehicle guidance system includes a hardware processor. The hardware processor specifies, outside a vehicle, a route from a starting position to a target position in a parking lot, and transmits, to the vehicle over a communication network, information about at least one route section of the route. The hardware processor determines detection accuracy of a first monitoring device being set as an active monitoring device out of monitoring devices. The active monitoring device serves to monitor deviation of the vehicle from the route section during autonomous driving along the route section. In response to determining that the detection accuracy of the first monitoring device is lower than a reference accuracy, the hardware processor sets a second monitoring device as the active monitoring device in place of the first monitoring device. The second monitoring device is different from the first monitoring device among the monitoring devices.

Abstract: A gas sensor system (1) including a gas sensor (2) and a sensor control section (40) including detection circuits (41), (42) and (43) for detecting the terminal potentials V1, V2, and V3 of first to third terminal T1 through T3. The sensor control section (40) includes a circuit (44) for applying an examination potential Vex to the second terminal T2, a first circuit (45) which has a predetermined resistance R1c and disconnectably connects the first terminal T1 and the second terminal T2, a second circuit (46) which has a predetermined resistance R2c and disconnectably connects the second terminal T2 and the third terminal T3, and terminal potential detection means S5 for detecting the terminal potentials V1, V2, and V3 using the detection circuits in a state in which the examination potential Vex is applied to the second terminal T2 and switches SW1 and SW2 are turned on.

Abstract: In a sensor control apparatus of a gas detection system, a multiplexer having received an instruction from a digital computation section outputs analog signals in the order of, for example, “signal 1, signal 2, signal 1, signal 3, signal 1, signal 4.” By outputting the analog signals while classifying each of them as a high occurrence-frequency signal which is high in output frequency or a low occurrence-frequency signal which is low in output frequency, the multiplexer can increase the sampling frequency of signal (analog signal of Vs+-COM voltage) which is the high occurrence-frequency signal. The sensor control apparatus can increase the sampling frequency in AD conversion of signal to a digital value, while suppressing an increase in the cost of an AD conversion section.

Abstract: A gas concentration detection device for detecting a gas concentration using a limiting current type gas concentration sensor. In an application voltage line set to pass through a plurality of limiting current regions for different values of gas concentration, a ratio for lean is set as a ratio of change in current with respect to a change in voltage when an air/fuel ratio corresponding to the gas concentration is lean, and a ratio of rich different from the ratio for lean is set when the air/fuel ratio is rich.

Abstract: A sensor control apparatus of a gas detection system includes a digital computation section having a PID computation section, a first filter section, and a second filter section as functional sections. The first filter section digitally extracts a DAC control signal (first filter signal) from a digital signal representing a supply control current Tip computed by the PID computation section. The DAC control signal is a digital signal which represents the supply control current Tip for pump current and in which noise components superimposed as a result of digital computation in the PID computation section have been attenuated.

Abstract: A gas sensor system (1) includes a gas sensor (2) having a cell (14) electrically communicating with a first terminal T1 and a second terminal T2, and a cell (24) electrically communicating with T2 and a third terminal T3; and a sensor control section (40) including detection circuits (41, 43) for detecting the terminal potentials V1, V3. The sensor control section includes circuit (44) for bringing T2 to an examination potential Vex; constant current circuits (47, 48) for supplying examination currents Ipoc, Icp; terminal potential detection means S5 for detecting V1, V3 before the gas sensor detects the gas concentration in an activated state, and in a state in which T2 is brought to examination potential Vex and Ipoc, Icp are supplied to the cells (14, 24); and wire breakage determination means S6, S10 for determining a wire breakage anomaly and its location based on the V1, V3.

Abstract: A gas concentration detection device for detecting a gas concentration using a limiting current type gas concentration sensor. In an application voltage line set to pass through a plurality of limiting current regions for different values of gas concentration, a ratio for lean is set as a ratio of change in current with respect to a change in voltage when an air/fuel ratio corresponding to the gas concentration is lean, and a ratio of rich different from the ratio for lean is set when the air/fuel ratio is rich.

Abstract: A gas concentration detection device for detecting a gas concentration using a limiting current type gas concentration sensor. In an application voltage line set to pass through a plurality of limiting current regions for different values of gas concentration, the voltage set by the application voltage line is an identical first voltage value used when an air/fuel ratio corresponding to the gas concentration is in a predetermined first range, is an identical second voltage value different from the first voltage value used when the air/fuel ratio is in a second range adjacent to the first range, and the first voltage value and the second voltage value are switched between the first range and the second range.

Abstract: When a voltage applied to a heater assumes a low-level potential, a control section of a load drive apparatus instantaneously supplies an anomaly judgment current to the heater, and computes the electrical resistance of the heater on the basis of the anomaly judgment current. The control section judges whether or not any of anomalous states of the heater, including at least a deteriorated state of the heater and wiring anomalous states of the heater, has occurred on the basis of the electrical resistance of the heater.

Abstract: In a heather control apparatus for a gas sensor, a CPU obtains upper and lower limit values by adding a predetermined value to and subtracting the predetermined value from an Rpvs average obtained in a last heater energization period (or to an Rpvs value obtained for the first time), and sets a window W1. The CPU obtains a plurality of Rpvs values [P2] to [P11], and obtains an Rpvs average A1 while excluding Rpvs values [P5], [P6], and [P9] which do not fall within the window W1 (not less than the lower limit value and not greater than the upper limit value). The CPU obtains the upper and lower limit values by adding the predetermined value to and subtracting the predetermined value from the Rpvs average A1, and sets a window W2 for the next heater energization period.

Abstract: An in-vehicle sensor (1) mounted on a vehicle VE and connected to a communication bus CAN including a bus connection connector (40) for connection to the CAN and external terminals (T3, T4) for communication, and one or a plurality of external terminals (T5, T6) for setting each brought into either of a first connection state not connected to any potential and a second connection state connected to a ground potential GND; a judgment section S1-S4, S5-S7 for setting whether the connection state is the first connection state or the second connection state; and an identifier setting section S8 which sets an identifier ID of the in-vehicle sensor (1) used on the communication bus CAN based on the judged connection state(s) for setting of the one or plurality of external terminals (T5, T6).

Abstract: A sensor control apparatus controls a gas sensor by means of digital control and restrains a decrease in accuracy of pump current control. A gas detection system includes such a sensor control apparatus. The sensor control apparatus includes a reference voltage generation section, and can change the maximum current range of pump current Ip in the current DA conversion section. The sensor control apparatus can set the maximum current range of the pump current Ip to a proper range in accordance with the type or characteristic of a gas sensor to be controlled. Namely, in the case where a gas sensor has a small sensor maximum current, the maximum current range of the current DA conversion section is changed to a range determined in consideration of the sensor maximum current of the gas sensor, which restrains a decrease in the accuracy in controlling the pump current Ip.

Abstract: A sensor temperature control apparatus (1) includes switching device (51); energization control means S1 and S2 for controlling duty ratio DT to maintain sensor element section (3) at a target temperature; storage means (75) for storing a first duty ratio DT1 in advance; element temperature judgment means S3 for determining whether the temperature of the sensor element section falls within a first temperature range including the target temperature; and semi-shorted state detection means S4 to S6 for comparing a present duty ratio DT2 with the first duty ratio in a state in which the temperature of the sensor element section falls within the first temperature range, to thereby determine whether a semi-shorted first temperature range state has arisen in which only a portion of the current flowing through switching device flows through heater section (4) and the temperature of the sensor element section falls within the first temperature range.

Abstract: An in-vehicle sensor (1) connected to a communication bus CAN includes a bus connection connector (40) including external communication terminals T3, T4, and external setting terminals T5, T6 each of which is brought into one of a plurality of connection states; judgment means S1-S7 for judging the connection states of the external terminals for setting T5, T6 when electric power is supplied in a state in which the bus connection connector (40) is connected to the communication bus CAN; identifier generation means S8 for generating an identifier ID of the in-vehicle sensor (1) based on the judged connection states; a nonvolatile storage section (11) for storing the identifier ID; communication means (10) for performing communications through the communication bus CAN using the stored identifier ID; and storing means S9 for storing a first generated initial identifier IDS in the storage section (11) as the identifier ID.

Abstract: A sensor control apparatus (2) of a gas detection system (1) includes a first low-pass filter (46), a second low-pass filter (48), and a multiplexer (50) so as to provide different time constants for detection of a sensor output signal Vs1 and for detection of a response signal Vs2. When the sensor output signal Vs1 is detected, a signal whose frequency band is the same as that of Vs1 is input to the analog-to-digital conversion section (31) through the first low-pass filter (46). Therefore, the detection accuracy of Vs1 is increased. When Vs2 is detected, a signal whose frequency band is the same as that of Vs2 is input to the analog-to-digital conversion section (31) through the second low-pass filter (48).

Abstract: A heater control apparatus (1) includes a heater driver (51) which is turned on and off in accordance with a pulse drive signal PS, heater energization control means S33, S39 for outputting the pulse drive signal PS to the heater driver 51 so as to control the supply of electric current to the heater section (4), power supply voltage detection means S30, S35 for detecting a power supply voltage VB of the power supply BT, ideal electric energy obtaining means S31, S37 for obtaining an unit ideal electric energy WAi, actual electric energy calculation means S36 for calculating an unit actual electric energy WA, and duty ratio determination means S38 for determining a duty ratio DT(n+1) of the pulse drive signal PS such that the unit actual electric energy WA(n+1) becomes equal to the unit ideal electric energy WAi(n+1) in the next period T(n+1).

Abstract: A sensor control apparatus of a gas detection system includes a digital computation section having a PID computation section, a first filter section, and a second filter section as functional sections. The first filter section digitally extracts a DAC control signal (first filter signal) from a digital signal representing a supply control current Tip computed by the PID computation section. The DAC control signal is a digital signal which represents the supply control current Tip for pump current and in which noise components superimposed as a result of digital computation in the PID computation section have been attenuated.

Abstract: In a sensor control apparatus of a gas detection system, a multiplexer having received an instruction from a digital computation section outputs analog signals in the order of, for example, “signal 1, signal 2, signal 1, signal 3, signal 1, signal 4.” By outputting the analog signals while classifying each of them as a high occurrence-frequency signal which is high in output frequency or a low occurrence-frequency signal which is low in output frequency, the multiplexer can increase the sampling frequency of signal (analog signal of Vs+-COM voltage) which is the high occurrence-frequency signal. The sensor control apparatus can increase the sampling frequency in AD conversion of signal to a digital value, while suppressing an increase in the cost of an AD conversion section.