US 12,304,282 B2
Thermal system for a motor vehicle with electric drive capability, motor vehicle, and method for operating the thermal system
Robert Herbolzheimer, Groebenzell (DE); Oliver Horn, Munich (DE); Markus Moser, Oberschleissheim (DE); Patrick Oswald, Munich (DE); and Ulrich Wirth, Munich (DE)
Assigned to Bayerische Motoren Werke Aktiengesellschaft, Munich (DE)
Appl. No. 17/764,374
Filed by Bayerische Motoren Werke Aktiengesellschaft, Munich (DE)
PCT Filed Oct. 7, 2020, PCT No. PCT/EP2020/078115
§ 371(c)(1), (2) Date Mar. 28, 2022,
PCT Pub. No. WO2021/089268, PCT Pub. Date May 14, 2021.
Claims priority of application No. 10 2019 129 784.2 (DE), filed on Nov. 5, 2019.
Prior Publication US 2022/0339989 A1, Oct. 27, 2022
Int. Cl. B60H 1/14 (2006.01); B60H 1/00 (2006.01); H01M 10/613 (2014.01); H01M 10/615 (2014.01); H01M 10/625 (2014.01); H01M 10/63 (2014.01); H01M 10/6568 (2014.01); H01M 10/663 (2014.01)
CPC B60H 1/143 (2013.01) [B60H 1/00278 (2013.01); H01M 10/613 (2015.04); H01M 10/615 (2015.04); H01M 10/625 (2015.04); H01M 10/63 (2015.04); H01M 10/6568 (2015.04); H01M 10/663 (2015.04); B60H 2001/00307 (2013.01); H01M 2220/20 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A heat system for an electrically driveable motor vehicle, comprising:
a coolant-carrying HVA circuit coupled to a traction accumulator, wherein the traction accumulator is configured to provide a supply to an electric drive unit of the motor vehicle;
a coolant-carrying heating circuit configured to control a temperature of a passenger cell of the motor vehicle and which is coupled thermally to the HVA circuit;
a coolant-carrying cooling circuit coupled to a heat source and coupled fluidically to the HVA circuit, the coolant-carrying cooling circuit configured to transmit, to the traction accumulator, heat provided by the heat source and transported via the coolant to heat the traction accumulator; and
a control device configured to, during heating of the traction accumulator by the heat provided by the heat source:
branch off at least a part of the heat provided by the heat source before transmission of the heat to the traction accumulator; and
transfer said at least a part of the heat into the heating circuit to preheat the coolant in the heating circuit to precondition the heating circuit.