| Micele |
30 januari 2021 20:32 |
Patent warmtepomp van Tesla in detail: (pdf 57 pages)
https://patentimages.storage.googlea...90070924A1.pdf
pdf is download via:
Citaat:
https://patents.google.com/patent/US20190070924A1/
Optimal source electric vehicle heat pump with extreme temperature heating capability and efficient thermal preconditioning
Abstract
A vehicle thermal management system includes a vehicle heat pump system, a battery system coolant loop, a drive train coolant loop, and control electronics. The vehicle heat pump system includes a compressor, a cabin condenser, a cabin evaporator, a cabin blower, and a chiller. The battery system coolant loop is in thermal communication with a battery system and with the chiller and selectively in thermal communication with the drive train coolant loop. The control electronics control the components of the vehicle thermal management system to heat the cabin, cool the cabin, heat the battery system, cool the battery system, and cool the drive train. The control electronics may control the compressor to operate in an efficient mode or a lossy mode in which the compressor generates heat. The control electronics may also control the components of the vehicle thermal management system to precondition the battery.
Images (37)
Claims (26)
What is claimed is:
1. A vehicle thermal management system comprising:
a vehicle heat pump system including a compressor, a cabin condenser, a cabin evaporator, a cabin blower, and a chiller;
a battery system coolant loop in thermal communication with a battery system;
a drive train coolant loop in thermal communication with at least one drive train component;
a coolant circulation system configured to selectively cause the battery system coolant loop and the drive train coolant loop to be in thermal communication with the chiller; and
control electronics configured to, based upon at least an ambient temperature, a cabin temperature and a battery system temperature:
control the coolant circulation system; and
control at least one of the compressor or the cabin blower to operate in one of an efficient mode and a lossy mode, wherein in the lossy mode the compressor generates a greater amount of heat than when in the efficient mode.
2. The vehicle thermal management system of claim 1, wherein the coolant circulation system is configured to:
in a first mode, cause the battery system coolant loop to operate in parallel with the drive train coolant loop;
in a second mode, cause the battery system coolant loop to operate in series with the drive train coolant loop; and
in a third mode, cause the battery system coolant loop to be partially in parallel and partially in series with the drive train coolant loop.
3. The vehicle thermal management system of claim 1, wherein the lossy mode includes a plurality of sub-lossy modes of differing loss characteristics producing differing respective amounts of heat.
4. The vehicle thermal management system of claim 1, further comprising:
a motor oil cooling loop in thermal communication with a traction motor and a transmission; and
an oil heat exchanger configured to exchange heat between the motor oil cooling loop and the drive train coolant loop.
5. The vehicle thermal management system of claim 1, wherein in controlling the at least one of the compressor and the cabin blower to operate in one of an efficient mode and a lossy mode, the control electronics considers at least one of vehicle range, battery performance, and cabin temperature.
6. The vehicle thermal management system of claim 1, wherein the vehicle heat pump system further comprises a cabin HVAC case that contains the cabin evaporator and the cabin condenser, the cabin HVAC case configured to operate in:
an air recirculation mode to recirculate air within the cabin; and
a fresh air mode that communicates air between the cabin and the ambient.
7. The vehicle thermal management system of claim 1, wherein the cabin evaporator and the cabin condenser are configured in at least one heating mode to operate concurrently.
8. A vehicle thermal management system comprising:
a vehicle heat pump system including a compressor, a cabin condenser, a cabin evaporator, a cabin blower, and a chiller;
control electronics configured to, based upon at least an ambient temperature and a cabin temperature, control the compressor to operate:
during a first time interval, in an efficient mode; and
during a second time interval, in a lossy mode in which the compressor generates a greater amount of heat than when in the efficient mode.
9. The vehicle thermal management system of claim 8, wherein in controlling the compressor to operate in one of the efficient mode and the lossy mode, the control electronics considers at least one of vehicle range, battery performance, and cabin temperature.
10. The vehicle thermal management system of claim 8, wherein the lossy mode includes a plurality of sub-lossy modes of differing loss characteristics producing differing respective amounts of heat.
11. The vehicle thermal management system of claim 8, wherein the control electronics are further configured to, based upon at least an ambient temperature and a cabin temperature, control the cabin blower to operate:
during a first time interval, in an efficient mode; and
during a second time interval, in a lossy mode in which the cabin blower generates a greater amount of heat than when in the efficient mode.
12. The vehicle thermal management system of claim 11, wherein the lossy mode includes a plurality of sub-lossy modes of differing loss characteristics producing respective amounts of heat.
13. The vehicle thermal management system of claim 8, wherein the vehicle heat pump system further comprises a cabin HVAC case that contains the cabin evaporator and the cabin condenser, the cabin HVAC case configured to operate in:
an air recirculation mode to recirculate air within the cabin; and
a fresh air mode that communicates air between the cabin and the ambient.
14. The vehicle thermal management system of claim 8, wherein the cabin evaporator and the cabin condenser are configured in at least one heating mode to operate concurrently.
15. The vehicle thermal management system of claim 8, wherein:
the vehicle heat pump system further comprises at least one inverter to drive at least one of the compressor and the cabin blower; and
the control electronics are further configured to control the at least one inverter to operate:
during the first time interval, in an efficient mode; and
during the second time interval, in a lossy mode to generate a greater amount of heat than when in the efficient mode.
16. A vehicle thermal management system comprising:
a vehicle heat pump system including a compressor, a cabin condenser, a cabin evaporator, a cabin blower, and a chiller;
a battery system coolant loop in thermal communication with a battery system and with the chiller; and
control electronics configured to, based upon at least an ambient temperature, a cabin temperature and a battery system temperature:
in a first operational mode, operate the compressor in an efficient mode to transfer heat from an ambient source to the battery system; and
in a second operational mode, operate the compressor in a lossy mode to generate heat and to transfer the generated heat to the battery system.
17. The vehicle thermal management system of claim 16, wherein in controlling the compressor to operate in one of the efficient mode and the lossy mode, the control electronics considers at least one of vehicle range, battery performance, and cabin temperature.
18. The vehicle thermal management system of claim 16, wherein the lossy mode includes a plurality of sub-lossy modes of differing loss characteristics producing respective amounts of heat.
19. The vehicle thermal management system of claim 16, wherein the control electronics are further configured to, based upon at least an ambient temperature and a cabin temperature, control the cabin blower to operate:
during a first time interval, in an efficient mode; and
during a second time interval, in a lossy mode in which the cabin blower generates a greater amount of heat than when in the efficient mode.
20. The vehicle thermal management system of claim 19, wherein the lossy mode includes a plurality of sub-lossy modes of differing loss characteristics producing respective amounts of heat.
21. The vehicle thermal management system of claim 16, wherein the vehicle heat pump system further comprises a cabin HVAC case that contains the cabin evaporator and the cabin condenser, the cabin HVAC case configured to operate in:
an air recirculation mode to recirculate air within the cabin; and
a fresh air mode that communicates air between the cabin and the ambient.
22. The vehicle thermal management system of claim 16, wherein the cabin evaporator and the cabin condenser are configured in at least one heating mode to operate concurrently.
23. The vehicle thermal management system of claim 16, wherein:
the vehicle heat pump system further comprises at least one inverter to drive at least one of the compressor and the cabin blower; and
the control electronics are further configured to control the at least one inverter to operate:
during a first time interval, in an efficient mode; and
during a second time interval, in a lossy mode to generate a greater amount of heat than when in the efficient mode.
24. The vehicle thermal management system of claim 16, wherein the cabin evaporator and the cabin condenser are configured in at least one heating mode to operate concurrently.
25. The vehicle thermal management system of claim 16, wherein the ambient source is the cabin.
26. The vehicle thermal management system of claim 16, wherein the ambient source is external air.
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Tiens, het gaat hier over voertuigen! :lol:
Details vd reengineering met echte foto's en video, ook de beroemde octovalve:
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