US 11,999,244 B2
Active discharge system for electric or hybrid motor vehicles
Giuseppe Simonazzi, Reggio Emilia (IT); Cesare Lasagni, Reggio Emilia (IT); and Severino Bigliardi, Reggio Emilia (IT)
Assigned to META SYSTEM S.p.A., Reggio Emilia (IT)
Appl. No. 17/265,407
Filed by META SYSTEM S.p.A., Reggio Emilia (IT)
PCT Filed Aug. 1, 2019, PCT No. PCT/IB2019/056556
§ 371(c)(1), (2) Date Feb. 2, 2021,
PCT Pub. No. WO2020/026180, PCT Pub. Date Feb. 6, 2020.
Claims priority of application No. 102018000007859 (IT), filed on Aug. 3, 2018.
Prior Publication US 2021/0268910 A1, Sep. 2, 2021
Int. Cl. B60L 3/04 (2006.01); B60L 3/00 (2019.01); H01L 27/02 (2006.01); H03H 19/00 (2006.01)
CPC B60L 3/04 (2013.01) [B60L 3/0046 (2013.01); H01L 27/0259 (2013.01); H03H 19/004 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An active discharge system for electric or hybrid motor vehicles, the active discharge system comprising:
at least one active discharge circuit operatively connected in parallel to at least one charge circuit, which is supplied by at least one high voltage power source and defines at least one electrically-charged equivalent capacitance of an electric charge, said active discharge circuit being configured to discharge the electric charge accumulated by said equivalent capacitance in the event of said high voltage power source being disconnected from said at least one charge circuit; and
control means of said active discharge circuit which are configured to receive at least one activation signal, said control means activating said active discharge circuit in case of receiving said activation signal, so as to discharge said equivalent capacitance, wherein
said control means comprise diagnostic means of said active discharge circuit configured to signal the activation of the latter to at least one diagnostic unit.