Abstract:
There is disclosed a safety arrangement (1) for a motor vehicle having an electric battery (2) and an occupant safety device(6) such as an airbag (7) or seat-belt pre-tensioner. The arrangement (1) comprises a crash sensor (10) responsive to acceleration, a battery sensor (13-17) arranged to monitor a battery parameter indicative of the condition of the battery, an actuator (8) for activating the occupant safety device(6), and a single control unit (9) operable to receive and process signals (x,b) from both the crash sensor(10) and the battery sensor(13-17). The control unit (9) is operable to issue an actuating command to the actuator (8) to activate the occupant safety device (6) in response to a signal x from the crash sensor. In a preferred embodiment, there is provided a second actuator (23,24,25) for activating a battery safety device(20,21,22); the control unit (9) being operable to issue an actuating command to said second actuator to activate the battery safety device upon receipt of both i) a signal (x) from the or at least one said crash sensor exceeding a predetermined threshold value X 1 and a ii) a signal b from the or at least one said battery sensor satisfying a predetermined criterion.
Abstract:
A safety device is provided to lift the rear part of the hood or bonnet of a motor vehicle in the event that the vehicle should collide with a pedestrian. The rear part of the hood or bonnet is connected to the main part of the vehicle by means of a hinge (20) which connect to permit the front part of the hood or bonnet to be opened, and which enables the rear part of the hood or bonnet to be lifted. A lifting element (1) is located beneath the rear part of the hood or bonnet (42) and is actuable to lift the rear part of the hood or bonnet. The hinge comprises a hinge arm (40) having one end (41) thereof pivotally connected (45) to the main part (43) of the vehicle, and having part (35) pivotally connected (27) to the hood or bonnet (42). There is a release mechanism (26) to release the connection in response to actuation of the lifting element (1).
Abstract:
A safety device for lifting part of the hood or bonnet of a motor vehicle includes a rupturable housing (2), the rupturable house sealingly enclosing an inflatable sleeve (10). The housing is adapted to rupture on inflation of the sleeve to permit the sleeve to emerge from the housing. In one embodiment the housing has two projecting lugs (6, 7) defining apertures. The core (18) of a Bowden cable (17) passes through the apertures and the outer sleeves (19, 20) of the Bowden cable engages the exterior parts of the lugs. On inflation of the sleeve (10) the lugs move apart applying tension to the core of the Bowden cable.
Abstract:
The application relates to a safety arrangement (1) for a motor vehicle comprising an electrical energy storage unit (2). The arrangement is particularly intended for use in a motor vehicle configured to be powered electrically, or by a so-called hybrid motor, and which hence comprises a high voltage electrical storage unit (2) such as a battery or capacitor. The safety arrangement (1) is configured to cool the storage unit (2) in response to a signal indicative of an accident situation or battery malfunction, and comprises: a source (8) of compressed inert gas (9) and a flow- release actuator, the flow-release actuator (13) being actuable upon receipt of an actuation signal so as to release a flow (46) of inert gas (9) from said source, the arrangement being configured such that said flow (46) is directed substantially onto said storage unit (2) so as to cool the unit. The invention provides a cutting mechanism (23) operable under the action of said flow of gas (9) to sever a conductor (7) electrically connecting said storage unit (2) to circuitry (6) provided within said vehicle. Thus, the storage unit (2) is cooled and isolated from the rest of the vehicle.
Abstract:
A separation fastener assembly includes a housing defining a cavity. A frangible nut is disposed in the cavity. The nut includes a plurality of nut segments. The one-piece frangible nut greatly reduces existing assembly problems and difficulties. Adjacent nut segments are interconnected at fracture lines. A bolt has an end coupled to the nut. A movable element is disposed in the housing and movable from a first position to a second position. In the first position, the nut segments are restrained from radial expansion. In the second position the nut segments are permitted to radially expand for releasing the fastener assembly.
Abstract:
The present invention relates to a heat exchanger arrangement (4) arranged to be mounted to a vehicle (1). The heat exchanger arrangement (4) is arranged to conduct heat from at least one component (2, 3) in the vehicle (1) to ambient air. The heat exchanger arrangement (4) is arranged to be expandable from a first state (S1) to a second state (S2). Furthermore, the heat exchanger arrangements volume and heat conductivity is increased when the heat exchanger arrangement (4) is expended from the first state (S1) to the second state (S2).The present invention also relates to a corresponding method.
Abstract:
The application relates to a safety arrangement (1) for a motor vehicle comprising an electrical energy storage unit (2). The arrangement is particularly intended for use in a motor vehicle configured to be powered electrically, or by a so-called hybrid motor, and which hence comprises a high voltage electrical storage unit (2) such as a battery or capacitor. The safety arrangement (1) is configured to cool the storage unit (2) in response to a signal indicative of an accident situation or battery malfunction, and comprises: a source (8) of compressed inert gas (9) and a flow- release actuator, the flow-release actuator (13) being actuable upon receipt of an actuation signal so as to release a flow (46) of inert gas (9) from said source, the arrangement being configured such that said flow (46) is directed substantially onto said storage unit (2) so as to cool the unit. The invention provides a cutting mechanism (23) operable under the action of said flow of gas (9) to sever a conductor (7) electrically connecting said storage unit (2) to circuitry (6) provided within said vehicle. Thus, the storage unit (2) is cooled and isolated from the rest of the vehicle.
Abstract:
A safety arrangement (1 ) is disclosed which is suitable for use in a motor vehicle comprising an electrical energy storage unit (2) of a type comprising a plurality of sub-units (4) electrically connected in series. The arrangement is particularly suitable for use in electric or so-called hybrid motor vehicles. The arrangement comprises: a structure (3) configured to define a substantially enclosed space (8) around said storage unit (2); a source (9) of compressed gas (10) provided in fluid communication with said enclosed space (8); and a flow-release actuator (13). The flow-release actuator (13) is actuable upon receipt of an actuation signal so as to release a flow (18) of gas from said source (9) and into said space (8). The arrangement is configured such that said flow (18) is effective to raise the internal pressure within said space above atmospheric pressure. At least part of said structure (3) is substantially expandable so as to expand in response to being pressurised by the flow (18) of said gas into said space (8); and the arrangement is configured such that expansion of said expandable part (26) is effective to electrically disconnect said sub-units (4) from one another.
Abstract:
A system and method for preventing a vehicle rollover is disclosed. The system includes a vehicle suspension unit and a programmable control unit. The vehicle suspension unit is located proximate to each of the vehicle road wheels for maintaining a predefine vehicle body height with respect to a road surface. The control unit is in communication with the vehicle suspension unit for actuating the vehicle suspension device after control unit has received a vehicle rollover notification signal to prevent vehicle rollover.
Abstract:
A safety arrangement compriese a unit (20) to be located beneath a bonnet (8) of a motor vehicle. The unit is adapted to become of increased lenght in response to a signal from a sensor (35) and may comprise a bellows-sleeve (21) and a gas generator (19). the unit has a catch arrangement (23) adapted ot engage part (9) of he bonnet structure so that that part of the bonnet structure is engaged and retained when the lenght of the unit is increased.