JP2015180571A5

JP2015180571A5 -

Info

Publication number: JP2015180571A5
Application number: JP2015125006A
Authority: JP
Filing date: 2015-06-22
Publication date: 2017-02-23
Anticipated expiration: 2034-07-23

Description

本発明の一態様に係るハンドルヒータ装置は、操舵ハンドルに備えられ、電気エネルギにより発熱する電気抵抗体で構成されたハンドルヒータと、前記ハンドルヒータの一方の端子に直列に接続された第１のインダクタと、前記ハンドルヒータへの電力供給をオンまたはオフする少なくとも１つのスイッチとを備え、前記一方の端子には、前記ハンドルヒータの静電容量の大きさに基づいて前記ハンドルヒータと被検出体との接触の有無を判定するセンサ回路が電気的に接続され、前記少なくとも１つのスイッチは、前記ハンドルヒータの前記一方の端子に前記第１のインダクタを介して直列接続された第１のスイッチ、および、前記ハンドルヒータの他方の端子に直列接続された第２のスイッチの少なくとも一方であり、前記ハンドルヒータへの電力供給がオンの状態およびオフの状態に同期した有効期間であって、前記センサ回路により前記ハンドルヒータと被検出体との接触の有無を判定する有効期間を決定し、前記有効期間以外の期間では前記センサ回路の判定結果を無視する制御部を備える。 A handle heater device according to an aspect of the present invention includes a handle heater that is provided in a steering handle and includes an electric resistor that generates heat by electric energy, and a first terminal connected in series to one terminal of the handle heater. An inductor and at least one switch for turning on or off the power supply to the handle heater, and the one terminal has the handle heater and the detected object based on the capacitance of the handle heater A sensor circuit for determining the presence or absence of contact with the at least one switch, and the at least one switch is a first switch connected in series to the one terminal of the handle heater via the first inductor, and, Ri least one der second switches serially connected to the other terminal of said handle heater, the handle heater The effective period synchronized with the power supply to the ON state and the OFF state is determined, and the effective period for determining the presence or absence of contact between the handle heater and the detected object is determined by the sensor circuit. in period Ru provided with a control unit to ignore the determination result of the sensor circuit.

Claims

A steering wheel heater that is provided in a steering handle and is configured by an electric resistor that generates heat by electric energy;
A first inductor connected in series to one terminal of the handle heater;
And at least one switch for turning on or off the power supply to the handle heater,
The one terminal is electrically connected to a sensor circuit for determining the presence or absence of contact between the handle heater and the detected object based on the capacitance of the handle heater,
The at least one switch includes a first switch connected in series to the one terminal of the handle heater via the first inductor, and a second switch connected in series to the other terminal of the handle heater. Ri at least On the other hand der of the switch,
Determining an effective period in which the power supply to the handle heater is synchronized with an on state and an off state, wherein the sensor circuit determines whether or not the handle heater is in contact with the object to be detected; A handle heater device including a control unit that ignores the determination result of the sensor circuit in a period other than the effective period .

2. The handle heater device according to claim 1, wherein the other terminal is connected to the switch or the power line without interposing an inductor element.

2. The handle heater device according to claim 1 , wherein the control unit sets a period within a period in which power supply to the handle heater is in an on state as one of the effective periods.

The control unit includes the effective period except for a transition period until the power supply to the handle heater is switched from an off state to a stable on state and a transition period until the power supply to the handle heater is switched from an on state to a stable off state. The handle heater device according to claim 1 .

The handle heater device according to any one of claims 1 to 4 , wherein the handle heater includes a heating wire connected between the one terminal and the other terminal and wired in a plurality of lines.

The handle heater device according to any one of claims 1 to 4 , wherein the handle heater includes a planar electric resistor connected between the one terminal and the other terminal.

The handle heater device further includes:
A plurality of handle heaters provided on the steering handle and including the handle heater;
A plurality of first inductors including the first inductor connected in series to one of the terminals of the plurality of handle heaters,
The at least one switch includes a first switch connected to the one terminal of each of the plurality of handle heaters via each of the plurality of first inductors, and the other of the plurality of handle heaters. at least one der second switch connected to each of the terminals is,
The handle heater device according to any one of claims 1 to 4 , wherein the sensor circuit is electrically connected to each of the one terminals of the plurality of handle heaters.

The handle heater device according to claim 7 , wherein the control unit validates the sensor circuit while switching the plurality of handle heaters in a time-sharing manner.

The handle heater device according to claim 7 , wherein the control unit enables the sensor circuit to simultaneously determine the presence or absence of the contact with respect to at least two of the plurality of handle heaters.

The handle heater device according to any one of claims 1 to 9 , wherein the electric energy is direct-current electric energy.

The sensor circuit outputs an AC signal to the steering wheel heater through the one terminal, and detects a level of a signal input from the steering wheel heater through the one terminal to thereby detect the steering handle. The handle heater device according to any one of claims 1 to 10 , wherein the presence or absence of contact between the sensor and the detected object is determined.