US 11,958,334 B2
Apparatus and method for low grade heat recovery in an electric vehicle
Chris Chatham, Coventry (GB); Dhillip Asokan, Coventry (GB); Kate Rouse, Coventry (GB); Oliver Stocks, Coventry (GB); Nilabza Dutta, Coventry (GB); and Richard Cook, Coventry (GB)
Assigned to Jaguar Land Rover Limited, Coventry (GB)
Appl. No. 16/970,354
Filed by JAGUAR LAND ROVER LIMITED, Coventry (GB)
PCT Filed Jan. 21, 2019, PCT No. PCT/EP2019/051403
§ 371(c)(1), (2) Date Aug. 15, 2020,
PCT Pub. No. WO2019/158316, PCT Pub. Date Aug. 22, 2019.
Claims priority of application No. 1802561 (GB), filed on Feb. 16, 2018.
Prior Publication US 2021/0086583 A1, Mar. 25, 2021
Int. Cl. B60H 1/00 (2006.01); B60H 1/03 (2006.01); B60H 1/14 (2006.01); B60H 1/32 (2006.01); B60L 58/27 (2019.01)
CPC B60H 1/00392 (2013.01) [B60H 1/00278 (2013.01); B60H 1/00428 (2013.01); B60H 1/03 (2013.01); B60H 1/143 (2013.01); B60H 1/3208 (2013.01); B60H 1/3211 (2013.01); B60H 1/3216 (2013.01); B60L 58/27 (2019.02); B60H 2001/00307 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A heat recovery system for an electric vehicle, comprising first and second switchable heat sources and a controller operable to selectively switch one of the heat sources into thermal communication with a compressor in a thermodynamic cycling system, the thermodynamic cycling system being in thermal communication with a heat sink; and a detection means operable to detect a temperature differential between each of the switchable heat sources and a fluid entering the compressor;
wherein the controller is operable to switch one of the first and second switchable heat sources into thermal communication with the thermodynamic cycling system when a temperature differential is detected between the fluid entering the compressor in the thermodynamic cycling system and the switchable heat source, the compressor being operable to upgrade low grade heat from the switchable heat source to a higher grade heat upon operation of the compressor.