Toyota Prius — Power Split Device

14 Июн 2015 | Author: | No comments yet »
Toyota Hybrid

Toyota Prius — Split Device (PSD)

The Prius is packed with pretty high-tech stuff, but at the of the Hybrid Synergy Drive is a simple little device the Power Split Device, or The PSD is a planetary gear set that the need for a traditional stepped and transmission components, and also the rev-lurch-rev-lurch of acceleration in an ordinary gas car. It acts as a continuously transmission (CVT) but with a gear ratio.

If you have no mathematical or mechanical of hybrid technology or even engine components, this help you get a feel for how the PSD allows the car to use from an internal combustion (ICE). as well as 2 electric (MG1 and MG2), all spinning at and variable speeds. The PSD even the smaller of the two Motor/Generators, MG1, to act as a for the ICE, thereby eliminating component of a traditional gasoline

The model below allows you the speed of both the ICE, and MG2 is the larger of the 2 electric motor/generators and is referred to as the traction motor its speed (RPM, or revolutions per has a fixed relationship to the speed of the Dragging the MG2 slider, you’ll see the speedometer changes, while the speed of the ICE does not directly speed. Once you master concept you’ll start to see how the CVT works. The ICE can spin faster or depending on how much

power is needed, and with resistance or assistance from the motors the car can reach the desired while always keeping the ICE at the most efficient rate

Toyota Hybrid

Rotation speeds of MG1, and ICE are inter-dependent, and the speed of MG1 will change when you vary the of either of the other 2. MG1 has a maximum of 10,000rpm in either direction or negative) with a software of 6500 RPM if ICE is off. Using the below, you can see for yourself why this limit means the ICE will spin if you’re travelling 42mph. And in case you were yes MG1 can and often does change directions under normal conditions.

ICE rotation is limited to speeds 1000rpm and 4500rpm. It can also completely, but anything between 0 and will force the slider up or That’s because the internal engine can’t operate below that speed. The computer knows, and will the ICE when it decides you don’t to use any gas, and start it again you need more power, or speed from MG1.

For a more technically in-depth of the inner workings of the hybrid as well as my inspiration and sources for demo, look at Wayne Prius Simulator. and explore Davies’ Toyota Prius You can also get a pretty user-friendly of the PSD in Word document format at

Toyota Hybrid
Toyota Hybrid

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