Joined: May 2014
Drive Cycles (emissions and/or fuel e
UP-VRTL - In the past, UPD provided counterpart fund for researchers that were funded by external agencies. Counterpart funding was, however, limited to the use of University resources and there was no equivalent cash outlay from the University.
According to UPD Chancellor Sergio Cao, unlike in the past the University now give big chunks of money as counterpart funding.
An example of this is the College of Engineering’s (CoE’s) Vehicle Research and Testing Laboratory (VRTL), a P178 million joint venture between UPD, the Department of Energy (DoE), the Philippine National Oil Company (PNOC) and the Department of Science and Technology (DOST).
UP provided P19 million as counterpart while partners DoE, PNOC and DOST will each provide about P50 million each.
The only one of its kind in the Philippines, the VRTL is mainly a research facility that conducts detailed analysis of different alternative fuels as well as fuel-savings and emission control devices. It will also serve as a major tool for instruction of CoE students.
Fuel and automotive companies as well as government may also avail of the services using these facilities for things such as fuel research and product and vehicle performance testing. This will help the laboratory become self-sufficient when the joint venture ends.
The 200-square-meter facility was inaugurated in August 2008 at the Mechanical Engineering department of the CoE and houses state-of-the-art equipment.
DRIVE CYCLES - A driving cycle is a standardised driving pattern. This pattern is described by means of velocity-time table. The track that is to be covered is divided in time-steps, mostly seconds. The acceleration during a time step is assumed to be constant. As a result the
velocity during a time step is a linear function of time. Because velocity and acceleration are known for each point of time, the required mechanical power as a function of time can be determined with formulas, which will be discussed later. This function integrated over the duration of the driving cycle produces the mechanical energy needed for that driving cycle. Off the road a vehicle can execute a driving cycle on a dynamometer. In the case of ICE driven vehicles, the fuel consumption and emissions are directly measured.
Three groups of DC's:
(a) European DC's - NEDC
(b) EPA DC's - UDDS
© Japanese DC's - 10-15/JC08; I think this is the DC that is used by VRTL at the moment. Maybe next year or 2016, the WLTP will be adopted. This is the Unified Worldwide Test Proceduces for Light-duty vehicles. It was developed by European, Japanese and Indian experts; commissioned by UNEP.
These three groups of DC's - ONLY THESE TESTS - are accepted by governments all over the world as proof that a particular car has the emissions and fuel consumption that the mfr claims. When a fuel saving device presents results from an emission and/or fuel consumption DC, then there may be something in it
The EPA has tested 104 devices for the last 20 years and found 7 that had slightly increase efficiency (max 6%) - Wikipedia. (I had asked EPA what DC test protocol did they test the devices. Still no answer at the moment although they informed that an answer if forthcoming within 5 working days) I also wish to know the 7 devices that had exhibited a slight increase of 6%.
While a dyno test will suffice, A DC test is mandatory for all fuel saving devices/innovations that are commercially sold. No DC test = BS.
Maybe within this year or early 2015, our innovation, the electronic fuel economizer (two-tech-in-one) will be tested by the VRTL, God willing.
(Sir Mike, please feel free to transfer this thread to its appropriate location. Thanks) The correct title of this thread should be :Drive cycles (emissions and/or fuel consumption)
(This post was last modified: 10-26-2014 12:02 AM by nuvisys.)
|10-25-2014 11:59 PM