AEM Dyno-Shaft On-Vehicle Dynamometer System
Image location”http://www.aemelectronics.com/dyno-shaft-on-vehicle-dyno-73/”
The Dyno-Shaft is a true on-vehicle dynamometer system that delivers Horsepower and Torque numbers. The company says the on-vehicle dynamometer is as accurate as the most respected industry dynamometer and a much better choice than accelerometer-based system.
According to AEM, accelerometer-based systems will skew readings due to uphill or downhill transitions, crosswids, vehicle aerodynamics, wheel spin, vehicle weight or a myriad of other factors.
How it Works: AEM uses a set of laboratory-grade strain gauges inside of a supplied slip yoke to measure Torque at the driveshaft. This is combined with a driveshaft speed sensor to precisely measure the rotational speed of the yoke to determine RPM. The combination of real Torque and RPM readings allows the Dyno-Shaft to output Torque and Horsepower numbers as accurately as any dynamometer but in a more useful setting.
The data broadcast device (Controller) for the Dyno-Shaft yoke is non-contact, does not have slip rings, does not require batteries and is maintenance free. This Controller installs over the transmission tail shaft housing and allows information from the Dyno-Shaft to be transmitted via AEMnet (AEM’s CAN-bus communications network) to a data logger, AEM or other programmable engine management system, or custom dashboard via a single connection
http://www.aemelectronics.com/dyno-shaft-on-vehicle-dyno-73/
