automotive temperature range
There's even a Grade 0 that goes up to 150 C for maximum temperature. It must also be constructed in such a way that it can expand and contract without stress failure.Sometimes extreme conditions are required. Stack Exchange network consists of 177 Q&A communities including It may seem like overkill, but the inside of a closed car can reach extreme temperatures during a sweltering summer day in many parts of the United States. ... Price range for all vehicles. the customer might want to specify a tougher requirement ("grade").These are the grades according to AEC-Q10, as you probably know:Temperature grades might be already standarized as seen above, but this doesn't mean that the design engineers of your customer are freed from carrying out their analyses and telling you which grade should your component be in order to be used in their assembly.
For temperature ranges, I can find no such guidance.One might say that it is up to the customer to specify the required range, but how is the customer to know? Who decides how fast a car should be able go and how much fuel it consumes?We used -40C to 85C for most of our parametric testing, with the upper number climbing to 105C or 125C for engine bay operation. Detailed answers to any questions you might have Your electronics would need to be pretty close the to engine or exhaust to need to withstand those kind of numbers.Probably grades 0 and 1 are for some part-level specifications, and grade 2 and higher for module/assembly-level specifications. Start here for a quick overview of the site Broadly accepted gradesNevertheless, each manufacturer defines its own temperature grades so designers must pay close attention to actual The use of such grades ensures that a device is suitable for its application, and will withstand the environmental conditions in which it is used. Electrical Engineering Stack Exchange works best with JavaScript enabled Still Grades 0 and 1 are pretty extreme. Who's going to do independent research into how hot a car gets in the Nevada desert and publish it?I'm sure there are as lots of aspects of car manufacture that have standards that can be applied and lots that don't.
^ https://www.cactus-tech.com/wp-content/uploads/2019/03/Commercial-and-Industrial-Grade-Products.pdf If however you take it down to -40 the liquid can actually freeze and destroy the unit.However, the above range is also dependent on installation location.
Heaters need to be added to the box for the cold example, and liquid cooling piped to the latter from a more distant location.For automotive applications it really depends on what the device does. Anything above this would require servicing by a qualified auto air conditioning mechanic. There are several standards that list methods of testing, such as ISO 16750-4 and AEC-Q100. In those cases extraordinary measures need to be taken. range, but how is the customer to know?Well, the customer has the whole picture and is the one who knows better from its own thermal analyses.If the component is to be mounted in a place where the thermal interface or the ambient will yield a high temperature (i.e.,located near the engine, etc.) It only takes a minute to sign up.When developing a new automotive electronic component, the component needs to be certified to withstand certain temperatures. Electrical Engineering Meta By using our site, you acknowledge that you have read and understand our Electrical Engineering Stack Exchange is a question and answer site for electronics and electrical engineering professionals, students, and enthusiasts.
Average rating from 1,168 customers who received a Car is overheating Inspection.
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Direct sunlight, proximity to other heat sources, poor ventilation, etc.
"Military engine turbine blades experience two significant deformation stresses during normal service, Commercial and retail products are manufactured to less stringent requirements than those for military and aerospace applications. A dashboard, which is "exposed to direct solar radiation", receives a recommended code G, which translates into a range of -40°C to +90°C. -40 to +125 C is Grade 1 according to AEC-Q100. overheating engines Temperature gauges Home. One motor may run hotter than another, even under the same external environmental conditions, due to specification or design differences.If your component is not project-specific (i.e., no customer specification applies), then you might want to design it for the wider operating temperature grade actually feasible, so to be able to market it to as many potential customers as possible. If it is that black box I mentioned above, it has to be made of a material that will not melt, crack or degrade in sunlight.
Military specification tend to be much more extreme than domestic, but wider examples exist. To have the right to homologates a vehicle, the manufacturer must comply to a set of requirements, but once they earn that right, they can do the homologation as they want.
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