Vehicle seat heating temperature control method, device and system

Abstract

The invention discloses a vehicle seat heating temperature control method. The method includes the following steps that when a certain heating gear is turned on or switched to, a current heating period is determined according to the temperature value corresponding to a current NTC sensor, wherein the heating period includes an initial temperature increasing stage, an approaching stage and a stable stage; according to heating strategies corresponding to each heating period, and the on-off state of a seat heating device is controlled stage by stage, so that the temperature of the surface of a seat reaches and is stabilized at an expected target temperature of the gear. The invention further discloses a corresponding device and system. By means of the method, device and system, the temperature of the surface of the seat can quickly reach and be stabilized at the expected temperature value, and the use experience is improved for users.

Description

technical field [0001] The invention belongs to the technical field of vehicle seat heating control, in particular to a method, device and system for controlling the temperature of vehicle seat heating. Background technique [0002] In some car seats, a heated / ventilated seat module (Heated / Ventilated SeatModule, HVSM) is usually provided to realize heating control of the seat. [0003] In the existing HVSM module, in order to improve the comfort of seat heating, it is expected to achieve the following control objectives: [0004] a) The surface temperature of the seat should rise from the ambient temperature to the expected temperature value as quickly as possible and stabilize around this temperature value, that is, it is hoped that the time from when the seat heating is turned on to when the seat surface temperature stabilizes at the expected value is as possible as possible short. [0005] b) After the seat surface temperature rises to the expected temperature value, i...

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Problems solved by technology

[0007] However, the existing control methods of the existing seat heating controller suppliers can generally meet the goal b). For the goal a), due to the time point when the controller intervenes in temperature control and the temperature control method, there are three situations as follows: 1. If the controller intervenes in the temperature control too early, the heating rate will be slowed down due to the decrease of the heating power when the seat surface temperature has not yet reached the expected value. It will take a long time for the seat surface temperature to reach the expected temperature value (for example, some models need 40 minutes to complete the above process); second, the controller intervenes in the temperature control time too late, which will cause the seat surface temperature to exceed the expected value (or "overshoot"); third, the controller intervenes in the temperature control to reach the seat surface During the final stabilization period of the temperature, due to the imperfect control method, the temperature of the seat surface fluctuates greatly, for example, exceeding ±1°C

[0008] Therefore, the existing temperature control method for car seat heating has more or less deficiencies in the heating effect, such as heating too slowly, or overheating, or hot and cold, which affects the user experience

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