US 12,247,864 B2
Payload monitoring device for a motor vehicle
M Arvind, Tamilnadu (IN); and K S Madhuchandra, Bangalore (IN)
Assigned to Volvo Truck Corporation, Gothenburg (SE)
Filed by VOLVO TRUCK CORPORATION, Gothenburg (SE)
Filed on May 23, 2022, as Appl. No. 17/664,534.
Claims priority of application No. 21180609 (EP), filed on Jun. 21, 2021.
Prior Publication US 2022/0404191 A1, Dec. 22, 2022
Int. Cl. G01G 19/12 (2006.01); G01G 3/13 (2006.01); G01G 23/18 (2006.01); H04B 1/04 (2006.01)
CPC G01G 19/12 (2013.01) [G01G 3/13 (2013.01); G01G 23/18 (2013.01); H04B 1/04 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A system for monitoring payload of a vehicle, wherein it comprises: at least one wireless transmitter comprising a piezo-resistive pressure sensor, a transceiver and a battery unit, encapsulated in an insulating casing, the at least one wireless transmitter being configured to be attached to an axle beam of the vehicle such that a mechanical strain of the axle beam is uniform and proportional to the payload, and the at least one wireless transmitter is further configured to emit a wireless signal in response to a mechanical strain of the axle beam, a wireless receiver configured to receive the wireless signal from the at least one wireless transmitter.