Temperature-controllable steering wheel, temperature control method of steering wheel, and vehicle

Abstract

The invention provides a temperature-controllable steering wheel, a temperature control method for the steering wheel and a vehicle. The temperature-controllable steering wheel includes a steering wheel frame, a detection device, a first generating device for producing high-temperature liquid, and a first generating device for producing low-temperature liquid. The second generating device and pipeline assembly; the steering wheel frame includes a main body and a steering shaft connected to the main body, wherein a heat exchange channel is formed inside the main body, and a liquid for liquid flowing into the heat exchange channel is arranged inside the steering shaft The input flow channel, the liquid output flow channel for the liquid to flow out of the heat exchange flow channel; the pipeline assembly includes a first pipeline and a second pipeline, the first pipeline communicates with the liquid input flow channel, and the second pipeline communicates with the liquid input flow channel. The liquid output channels are connected; the first generating device acts on the first pipeline; the second generating device acts on the first pipeline. The invention adopts the liquid heat exchange method to refrigerate and heat the steering wheel, and has the advantages of simple structure, uniform overall temperature of the steering wheel, and high energy utilization rate.

Description

technical field [0001] The invention belongs to the field of automobiles, and in particular relates to a temperature-controllable steering wheel capable of flowing liquid for cooling and heating, a method for controlling the temperature of the steering wheel, and a vehicle. Background technique [0002] At this stage, customers in the market are anxious about the cruising range at low temperature, mainly because turning on heating at low temperature will consume a lot of energy, which makes many companies reduce the power of air conditioning and heating, and use related parts that are in contact with people for local heating The way. The steering wheel is a necessary directional control component in driving. Customers often complain about the steering wheel being overheated or overcooled and uncomfortable during use under high temperature (summer) and low temperature (winter) conditions. [0003] At present, the steering wheels of most motor vehicles on the market do not ha...

AI Technical Summary

Problems solved by technology

As the steering wheel is a necessary directional control component in driving, customers often complain that the steering wheel is overheated or too cold, causing discomfort during use under high temperature (summer) and low temperature (winter) conditions.

[0003] At present, the steering wheels of most motor vehicles on the market do not have the function of adjusting the hot and cold temperature according to the needs; thus, in the hot summer, drivers have to wear gloves in order to avoid slipping due to sweating in the palms of the steering wheel while holding the steering wheel for a long time; In winter, when the driver does not turn on the air conditioner in the car, he may wear gloves to avoid directly touching the cold steering wheel.

For the driver, wearing gloves is likely to cause inflexible fingers and poor comfort, and it is also easy to accelerate driving fatigue and lead to traffic accidents

[0004] In the prior art, most electric vehicles do not have the function of steering wheel heating. The principle of steering wheel heating in traditional cars is to use resistance wire heating. The disadvantage of using the heating wire is that it cannot support the use of the steering wheel to cool down under high temperature conditions, which has certain limitations. In addition, the heating efficiency of this heating method is relatively low (only about 40%), and the service life of the resistance wire Low, prone to resistance wire oxidation, etc. When used in electric vehicles, extra power will be consumed at low temperatures, which will affect the cruising range, and will also increase the cost

[0005] There is also a way to embed a semiconductor device inside the steering wheel for heating and cooling. For example, the Chinese patent with the patent number 201310325377.X and the title of the invention is a temperature-controllable steering wheel and its temperature control method. The disadvantage of using semiconductors for heating and cooling is that, It is necessary to embed semiconductor chips and heat dissipation structures inside the steering wheel. Semiconductors are based on the Peltier effect to complete the functions of heat generation and heat absorption. Semiconductor refrigeration requires a heat dissipation mechanism at the same time, and the heat dissipation mechanism will take up a lot of space on the steering wheel, which is not conducive to The arrangement of related parts of the steering wheel will greatly highlight the problem of insufficient space for the steering wheel, and the overall structure is more complicated and the cost is higher

[0006] It is also proposed to embed the air-conditioning duct to heat and cool the steering wheel. This method of using air-conditioning air for cooling and heating can only realize the cooling and heating of the steering wheel when the air-conditioning in the car is turned on for cooling and heating. Heating, this limitation will cause the steering wheel to be unable to control its temperature when the customer does not need to turn on the air conditioner. If it is used on an electric vehicle, it will consume extra power at low temperatures and affect the cruising range.

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