The context of the test is conformity of production (CoP)A vehicle that has been homologated (European drive cycle) has to show ongoing compliance (type 1 taol pipe emissions). Initially the mass production vehicles are selected for test to show the process is in compliance, this is done with a...
Hi,
I am looking at the probability of emission failures during a European emissions test. could any one please explain the following text:
With a minimum sample size of 3, the sampling procedure is set so that the probability of a lot passing a test with 40 % of the production defective is 0,95...
Hi,
I am looking at the probability of emission failures during a European emissions test. could any one please explain the following text:
With a minimum sample size of 3, the sampling procedure is set so that the probability of a lot passing a test with 40 % of the production defective is 0,95...
I am interested in the electric/electronic application of service/secondary braking (including parking brake) of automobiles. I am interested in how they work, how the braking force is applied and what sort of load is placed on the battery. A specific question is, with the engine switched off...
I am involved with testing modular ambulance bodies subjected to 10g dynamic pulses in 6 directions, I am concerned with internal items comming away from their fixings as well as doors opening and contents becoming projectiles. I have a lot of experience of dynamic testing, but my knowledge of...
Three dimensional reference systems used for European type approval is based on ISO 4130-1978. The gist is as follows:
The vehicle is divided into three planes X,Y,Z
Zero X plane (vertical transverse zero plane) runs roughly across the engine bulk head. Therefore X+ is to the rear of the...
Hi,
There is a European standard for rollover of N2, N3 O3,O4 (N=goods; O=trailers)tanks that carry dangerous goods. The standard you require is ECE111. It is very simple, either a tilt test, or a calculation
Del
Hi,
I need to measure X number of air changes for a given volume (internal area of a motor vehicle)as a check against manufacturers claims. I require a simple, portable device which is reasonably accurate, has some form of read out. A data recording/storage facility would be nice.
Any ideas...
