Hybrid Synergy Drive (HSD), also known as Toyota Hybrid System II, is the brand name of Toyota Motor Corporation for the hybrid car drive train technology used in vehicles with the Toyota and Lexus marques. First introduced on the Prius, the technology is an option on several other Toyota and Lexus vehicles and has been adapted for the electric drive system of the hydrogen-powered Mirai, and for a plug-in hybrid version of the Prius. Previously, Toyota also licensed its HSD technology to Nissan for use in its Nissan Altima Hybrid. Its parts supplier Aisin offers similar hybrid transmissions to other car companies.
Toyota 1NZ-FXE engine (left) with early HSD, sectioned and highlighted (right). Generation 1/Generation 2, chained, ICE-MG1-MG2 Power Split Device HSD is shown.
Power electronics from Prius NHW11 "Classic"
Late Toyota HSD, sectioned and highlighted. Generation 3, chainless, ICE-MG1 Power Split Device/MG2 Motor Speed Reduction Device HSD is shown. This is a P510 transaxle, from a 2012– Prius c; a P410 transaxle, from a 2010–2015 Prius, is similar, but is physically larger; a Generation 4 P610 transaxle from a 2016– Prius is 47mm narrower than a P410 by implementing side-by-side motors rather than end-to-end motors.
High voltage nickel-metal hydride (NiMH) battery of second generation Toyota Prius.
Toyota Motor Corporation is a Japanese multinational automotive manufacturer headquartered in Toyota City, Aichi, Japan. It was founded by Kiichiro Toyoda and incorporated on August 28, 1937. Toyota is the largest automobile manufacturer in the world, producing about 10 million vehicles per year.
Headquarters in Toyota, Japan
The mass-produced Toyoda automated loom, displayed at Toyota Museum in Aichi-gun, Japan
The 1936 Toyota AA, the first vehicle produced by the company while it was still a department of Toyota Industries
Toyopet Crown, the first vehicle fully designed and built by Toyota
