40results about How to "Avoid false activation" patented technology

An airbag apparatus for a small vehicle for preventing an airbag from being inflated uselessly even when a rider is moved significantly on the vehicle. A first airbag module includes impact sensors, an electronic control unit for generating an output signal when an impact force is determined to be excessive from detection signals supplied from the impact sensors, an inflator which is activated by the output signal from the electronic control unit and an airbag which is inflated by gas generated from the inflator that is mounted on a small vehicle. A second airbag module includes an inflator and a wearing type airbag which is inflated by gas generated by the inflator that is mounted on a rider. The electronic control unit and the inflator of the second airbag module are connected by couplers that can input the output signal from the electronic control unit to the second airbag module.

A device for controlling a hydraulically operable switching element (2) of an automatic transmission of a vehicle with a position valve mechanism (3) having a main switch piston (6) which is spring biased into a first switch position and a second switch position with a pilot pressure (P_MV) which is adjustable through an electrically operated actuator (5). An additional switch piston (7) and the main switch piston (6) are axially actuated in a valve housing (8). Depending on the position of the pistons (6, 7), faces (6A, 7A) of the respective pistons are either spaced apart or adjacent. The additional switch piston (7) is adjustable depending on a pilot pressure (p_K) of a switching element which engages a gear for forward drive.

The invention relates to a method of responding to an environment situation of a motor vehicle (100). The method includes steps of sending data of an endangered traffic participant (VT) to the motor vehicle (100), sensing a surornding environmetn of a motor vehicle (200) by means of a sournding environment sensing device (10) of the motor vehicle (200), comparing the data of the endangered traffic participant (VT) with data acquired by the sournding environment sensing device (10), acquiring poteintial view shield of the endangered traffic participant (VT), and triggering a defined motion if the view shield of the endangered traffic participant (VT) exists in a defiend probability and a driving path (20) of the endangered traffic participant (VT) relative to the motor vehicle (100) is provided with a defined near distance and a defiend motion.

An occupant protection device controller includes a main sensor, a safing sensor, a main control circuit, a sub control circuit, and a trigger signal output circuit. Whereas the main control circuit has a CPU, and the sub control circuit has no CPU. The main control circuit determines whether to output a main control signal based on both an output of the main sensor and an output of the safing sensor. The sub control circuit has a comparator and determines whether to output a sub control signal based on a comparison of the output of the main sensor with a threshold value. The trigger signal output circuit outputs a trigger signal for activating an occupant protection device upon receipt of both the main control signal and the sub control signal.

The device of the present invention, having at least one activation button, is further equipped with a sensor adapted to detect conditions under which unintentional triggering of the activation button is likely. The sensor is operatively coupled with the activation button to suspend its effect when the target conditions are being detected. The undesired side-effects of false button activations, including battery drain and activation counter drift, are thus avoided, increasing the device's lifespan and user convenience. In a particular embodiment, the sensor is a decoy button located near the activation button, which serves to de-activate the activation button.

The invention provides a control method of a multi-card system, comprising the following steps: after being inserted into the multi-card system, a card detects the working modes of similar cards; if activated similar cards are detected, the inserted card is set to be in waiting mode; otherwise, the inserted card puts forward a request of inquiring the working modes of the similar cards to a control card; the control card feeds the working modes of the cards similar to the inserted card back to the inserted card; the inserted card determines own working mode after receiving the working modes of the similar cards; if the inserted card does not receive the feedback information from the control card within preset time after putting forward the request to the control card, the inserted card is activated. The control method of the multi-card system can avoid system information spillover because the cards are mis-activated during abnormal connection among cards and improve the stability of the system.

A vehicle antitheft device prevents an erroneous activation of a theft preventing function due to an activation of a system, which is capable of starting an engine in a state where a key is not inserted in an ignition key cylinder. A power source control device causes a starter motor to start the engine when the key is inserted into the ignition key cylinder or an authentication collation through a radio communication is completed. The vehicle antitheft device activates an alarm when an IG signal from the power source control device becomes an ON signal in an uninserted state of the key into the ignition key cylinder. A push start switch, which is push-operated at a time of an engine start, is connected to the power source control device and the vehicle antitheft device. The power source control apparatus turns an ACC signal and the IG signal supplied to the vehicle antitheft device to an ON state in that order when the collation with the portable equipment through a radio communication is completed after an operation of the push start switch. The vehicle antitheft device changes a security function to an unvigilant state when the ACC signal is changed to an ON state.

The invention provides a phase protection circuit applied to a half-bridge resonance circuit. The phase protection circuit comprises a comparator circuit and a controller. The comparator circuit is used for obtaining resonance current in the half-bridge resonance circuit, a current waveform of the resonance current is compared with a control waveform corresponding to drive control signals of an upper bridge or a lower bridge in the half-bridge resonance circuit, and therefore the phase difference of the current waveform and the control waveform is obtained; the controller is connected to the comparator circuit, according to the phase difference, whether the half-bridge resonance circuit is in a normal work state or not is judged, and when a judgment result is negative, the operation that the control signals are sent to the half-bridge resonance circuit is stopped. Correspondingly, the invention further provides a phase protection method and an electromagnetic heating device. According to the technical scheme, the phenomenon that due to a phase error of the drive control signals, an IGBT is turned on by mistake after a zero crossing point of current occurs is avoided, the IGBT is prevented from being overheated and burnt, and the IGBT is effectively protected.