Vehicle heating device, and vehicle provided with vehicle heating device

Patent metadata

Field	Value
Publication number	US-11919366-B2
Application number	US-202017036211-A
Country	US
Kind code	B2
Filing date	Sep 29, 2020
Priority date	Mar 30, 2018
Publication date	Mar 5, 2024
Grant date	Mar 5, 2024

Abstract

A target thermal sensation setter sets target thermal sensations for a finite number of parts into which the occupant is virtually divided. A cabin temperature controller individually controls a cabin air-conditioning unit and an auxiliary heater so that the thermal sensations of the respective parts of the occupant estimated by an occupant thermal sensation estimator fall within a range of the target thermal sensations.

First claim

What is claimed is:

1. A vehicle heater including a cabin air-conditioning unit configured to produce air-conditioned wind blowing out of an outlet in a cabin and to condition air in the cabin using the air-conditioned wind, the vehicle heater comprising:
an auxiliary heater including at least one of a direct warmer positioned to correspond to a part of an occupant in contact therewith and configured to directly warm the occupant, or a radiant warmer positioned to be apart from the occupant and configured to warm the occupant by radiant heat;
a cabin condition detector, including at least a sensor, configured to sense or estimate at least one cabin condition of a temperature condition inside the cabin, a humidity condition inside the cabin, an airflow condition inside the cabin, or a solar radiation condition inside the cabin; and
a controller, including at least a processor and a memory, configured to:
detect operation states of the cabin air-conditioning unit and the auxiliary heater;
set target thermal sensations for a finite number of parts into which the occupant is virtually divided;
quantitatively estimate the thermal sensations of the respective parts of the occupant based on the cabin condition sensed or estimated, and the operation states of the cabin air-conditioning unit and the auxiliary heater detected; and
individually control the cabin air-conditioning unit and the auxiliary heater so that the thermal sensations of the respective parts estimated fall within a range of the target thermal sensations set, wherein
the parts include a near part to and a distal part from the outlet of the cabin air-conditioning unit, and
the controller is further configured to control a volume of air-conditioned wind delivered from the cabin air-conditioning unit in accordance with the thermal sensation of the distal part from the outlet, and control a temperature of the air-conditioned wind delivered from the cabin air-conditioning unit in accordance with the thermal sensation of the near part to the outlet.

2. The vehicle heater of claim 1 , further comprising:
a heating energy consumption detector, including at least a sensor, configured to detect heating energy consumptions of the cabin air-conditioning unit and the auxiliary heater, wherein
the controller is further configured to control, if the thermal sensations of the respective parts estimated fall within the range set, the cabin air-conditioning unit and the auxiliary heater so that a sum of the heating energy consumptions detected by the heating energy consumption detector becomes the lowest.

3. The vehicle heater of claim 2 , wherein
the controller is further configured to control, if the thermal sensation of at least one part among the thermal sensations of the respective parts estimated exceeds the range set, the cabin air-conditioning unit so as to reduce the heating energy consumption of the cabin air-conditioning unit, and control the auxiliary heater so as to increase the heating energy consumption of the auxiliary heater.

4. The vehicle heater of claim 1 , wherein
the parts include the near part to and the distal part from the outlet of the cabin air-conditioning unit, and
the controller is further configured to control the cabin air-conditioning unit and the auxiliary heater so that the thermal sensation of the distal part from the outlet falls within the range set.

5. The vehicle heater of claim 1 , wherein
the parts include the near part to and the distal part from the outlet of the cabin air-conditioning unit, and
the controller is further configured to control the cabin air-conditioning unit and the auxiliary heater so that the thermal sensation of the near part to the outlet falls within the range set.

6. The vehicle heater of claim 1 , wherein
the outlet of the cabin air-conditioning unit includes a lower-body-side outlet for allowing air-conditioned wind to blow toward a part of the lower body or the entire lower body of the occupant therethrough and an upper-body-side outlet for allowing the air-conditioned wind to blow toward a part of the upper body or the entire upper body of the occupant therethrough,
the controller is further configured to:
estimate thermal sensations of upper and lower bodies of the occupant, and
change volumes of air-conditioned winds blowing out of the upper-body-side outlet and the lower-body-side outlet in accordance with the thermal sensations of the upper and lower bodies estimated.

7. The vehicle heater of claim 1 , wherein
the controller is further configured to estimate the thermal sensations of the respective parts of the occupant based on estimated values of skin temperatures of the respective parts of the occupant.

8. The vehicle heater of claim 1 , wherein
the controller is further configured to estimate the thermal sensations of the respective parts of the occupant based on measured values of skin temperatures of the respective parts of the occupant.

9. The vehicle heater of claim 7 , wherein
the controller is further configured to control the cabin air-conditioning unit so that the temperature of air-conditioned wind blowing out of the outlet becomes equal to or greater than the estimated values of the skin temperatures.

10. The vehicle heater of claim 1 , wherein
the auxiliary heater is a seat heater system, which is incorporated into a vehicle seat and includes the direct warmer and the radiant warmer.

11. The vehicle heater of claim 10 , wherein
the controller is configured to set respective output upper limit values for the direct warmer and the radiant warmer, and the output upper limit value of the direct warmer is lower than that of the radiant warmer.

12. A vehicle comprising the vehicle heater of claim 1 .

Assignees

• Panasonic Ip Man Co Ltd
• Japan Climate Systems Corp

Inventors

• Saitou Kensaku
• Komori Kou
• Furui Mio
• Nakashima Yu
• Hamamoto Hiroshi
• Miyazaki Yoichi
• Nishii Hideaki
• Shigenaka Hiroaki

Classifications

• B60H1/00285

  for vehicle seats · CPC title

• B60H1/00742 Primary

  by detection of the vehicle occupants' presence; by detection of conditions relating to the body of occupants, e.g. using radiant heat detectors · CPC title

• B60H1/00207

  characterised by the position of the HVAC devices with respect to the passenger compartment (B60H1/00021 takes precedence) · CPC title

• B60H1/00428

  electric · CPC title

• B60H1/0075

  the input being solar radiation · CPC title