Heavy-duty vehicle battery suspension system comprising a pyrotechnical fastener
A heavy-duty vehicle battery suspension system for releasably holding a rechargeable traction battery in an electric heavy-duty vehicle, wherein the heavy-duty vehicle battery suspension system comprises a pyrotechnical fastener, wherein the heavy-duty vehicle battery suspension system is configured to release the traction battery if the pyrotechnical fastener is triggered, and wherein the heavy-duty vehicle battery suspension system is configured such that the pyrotechnical fastener may be manually triggered. A method for releasing a rechargeable traction battery from an electric heavy-duty vehicle is also disclosed.
1 . A heavy-duty vehicle battery suspension system for releasably holding a rechargeable traction battery in an electric heavy-duty vehicle, wherein:
the heavy-duty vehicle battery suspension system comprises a pyrotechnical fastener and a trigger device configured to trigger the pyrotechnical fastener by an electric potential by an operator connecting an electric cable of the trigger device to an electric energy source, a contact member arranged between the electric cable and the electric energy source for connecting the electric energy source to the electric cable;
the heavy-duty vehicle battery suspension system is configured to release the traction battery if the pyrotechnical fastener is triggered; and
the heavy-duty vehicle battery suspension system is configured such that the pyrotechnical fastener may be manually triggered by the operator.
2 . The heavy-duty vehicle battery suspension system of claim 1 , wherein the trigger device comprises the electric cable that is electrically connected to the pyrotechnical fastener.
3 . The heavy-duty vehicle battery suspension system of claim 1 , further comprising at least two separate trigger devices, each configured to independently trigger the pyrotechnical fastener.
4 . The heavy-duty vehicle battery suspension system of claim 1 , wherein the pyrotechnical fastener mechanically connects the rechargeable traction battery to the electric heavy-duty vehicle.
5 . The heavy-duty vehicle battery suspension system of claim 4 , wherein the pyrotechnical fastener extends through a vehicle fixation bracket of the electric heavy-duty vehicle and through a battery bracket of the rechargeable traction battery.
6 . The heavy-duty vehicle battery suspension system of claim 1 , wherein the traction battery is held to the electric heavy-duty vehicle at a number of suspension points, and wherein the pyrotechnical fastener is one of a plurality of pyrotechnical fasteners arranged at each suspension point.
7 . The heavy-duty vehicle battery suspension system of claim 1 , wherein a central suspension point is arranged for holding the traction battery to the electric heavy-duty vehicle, and wherein the pyrotechnical fastener is arranged in connection with the central suspension point.
8 . The heavy-duty vehicle battery suspension system of claim 1 , wherein the pyrotechnical fastener is a front pyrotechnical fastener, and further comprising a rear pyrotechnical fastener.
9 . The heavy-duty vehicle battery suspension system of claim 1 , wherein the trigger device comprises a transmitter configured to be activated by the operator for wirelessly communicating with a receiver arranged in connection with the pyrotechnical fastener for triggering the pyrotechnical fastener.
10 . The heavy-duty vehicle battery suspension system of claim 1 , wherein the pyrotechnical fastener is one of a front left, a front right, a rear left, and a rear right pyrotechnical fastener.
11 . An electric heavy-duty vehicle energy supply system comprising the heavy-duty vehicle battery suspension system of claim 1 and the rechargeable traction battery.
12 . A method for releasing the rechargeable traction battery from the electric heavy-duty vehicle, comprising:
providing the heavy-duty vehicle battery suspension system of claim 1 ;
arranging the pyrotechnical fastener in the heavy-duty vehicle battery suspension system; and
triggering the pyrotechnical fastener manually for releasing the traction battery from the electric heavy-duty vehicle.
13 . A heavy-duty vehicle battery suspension system for releasably holding a rechargeable traction battery in an electric heavy-duty vehicle, wherein:
the heavy-duty vehicle battery suspension system comprises a pyrotechnical fastener and a trigger device for triggering the pyrotechnical fastener, the trigger device being hidden during normal operation of the electric heavy-duty vehicle;
the heavy-duty vehicle battery suspension system is configured to release the traction battery if the pyrotechnical fastener is triggered; and
the heavy-duty vehicle battery suspension system is configured such that the pyrotechnical fastener may be manually triggered by an operator.
14 . The heavy-duty vehicle battery suspension system of claim 13 , wherein a proximal end of an electric cable is electrically connected to the pyrotechnical fastener and a distal end of the electric cable is accessible to the operator through an opening of the electric heavy-duty vehicle, wherein the opening is configured to be closed during normal operation of the electric heavy-duty vehicle.
15 . The heavy-duty vehicle battery suspension system of claim 14 , wherein the proximal end of the electric cable is electrically connected to the pyrotechnical fastener and the distal end of the electric cable is accessible to the operator through a tow eye opening of the electric heavy-duty vehicle that serves as the opening of the electric heavy-duty vehicle.
16 . The heavy-duty vehicle battery suspension system of claim 14 , wherein the proximal end of the electric cable is electrically connected to the pyrotechnical fastener and the distal end of the electric cable is accessible to the operator through a side marking lamp of the electric heavy-duty vehicle that serves as the opening of the electric heavy-duty vehicle.
17 . An electric heavy-duty vehicle comprising:
a heavy-duty vehicle battery suspension system for releasably holding a rechargeable traction battery in the electric heavy-duty vehicle, wherein:
the heavy-duty vehicle battery suspension system comprises a pyrotechnical fastener and a trigger device configured to trigger the pyrotechnical fastener by an electric potential by an operator connecting an electric cable of the trigger device to an electric energy source, a contact member arranged between the electric cable and the electric energy source for connecting the electric energy source to the electric cable;
the heavy-duty vehicle battery suspension system is configured to release the traction battery if the pyrotechnical fastener is triggered; and
the heavy-duty vehicle battery suspension system is configured such that the pyrotechnical fastener may be manually triggered by the operator; and
an electric heavy-duty vehicle energy supply system comprising the heavy-duty vehicle battery suspension system and the rechargeable traction battery.