mechanical stepped transmission mechanism
meccanismo di trasmissione meccanica passo-passo

The invention relates to a controller for a vehicle and a control method for a vehicle.
In particular, the invention relates to a fail-safe technique in a case of failure of a mechanical stepped transmission mechanism that is provided in series with a continuously variable transmission mechanism.

L'invenzione riguarda un controller per veicolo e un metodo di controllo per veicolo.
In particolare, l'invenzione riguarda una tecnica fail-safe in un caso di guasto di un meccanismo di trasmissione meccanica passo a passo che è fornito in serie con un meccanismo di trasmissione a variazione continua.

https://help.edmunds.com/hc/en-us/articles/206102597-What-ar...
Differenza tra Trasmissione automatica e Trasmissione a variazione continua
Automatic Transmission (AT)
This is a transmission that uses a torque converter, planetary gearset and clutches or bands to shift through a vehicle's forward gears automatically. Some automatics allow the driver a limited amount of manual control over the vehicle (aside from choosing a forward, reverse or neutral mode) -- for example allowing the driver to control upshifts and downshifts by utilizing buttons or paddles on the steering wheel or the gear selector. Common names for such transmissions are "shiftable automatic," "Tiptronic" and "autostick."
Continuously Variable Transmission (CVT)
This transmission has a continuously variable drive ratio (as opposed to conventionally stepped gear ratios) and uses belts, pulleys and sensors rather than gears to maintain a steady acceleration curve with no pauses for gear changes. Because of this, a CVT can keep the engine in its optimum power range, thereby increasing efficiency and gas mileage.

https://www.liveabout.com/continuously-variable-transmission...

https://www.linguee.it/inglese-italiano/traduzione/stepping ...
https://it.glosbe.com/en/it/stepping motor
stepping motor = motore passo passo

https://patents.google.com/patent/US9239099B2/en
... Some mechanical drives include transmissions of the type known as stepped, discrete, or fixed ratio. These transmissions are configured to provide speed ratios that are discrete or stepped in a given ratio range. ...
... Other drives include a type of transmission generally known as a continuously variable transmission (or “CVT”), which includes a continuously variable variator. A CVT, in contrast to a stepped transmission, is configured to provide every fractional ratio in a given range. ...

https://www.logicaprogrammabile.it/pilotare-motore-passo-pas...
Quando osservo i robot industriali assemblare, saldare, fresare o posizionare oggetti con una precisione sconcertante rimango affascinato dalla capacità umana di poter costruire queste macchine.
Anche nelle nostre abitazioni sono presenti oggetti dotati di parti meccaniche, che compiono movimenti molto precisi, come ad esempio le stampanti, i plotter e gli scanner.
Questi dispositivi hanno in comune tra loro un particolare dispositivo chiamato motore passo passo (stepper motor).
E’ un trasduttore elettromeccanico che converte degli impulsi elettrici in un movimento fisico. Ad ogni impulso elettrico corrisponde un movimento del rotore; questo spostamento viene chiamato step.

https://www.vincenzov.net/tutorial/passopasso/stepper.htm

https://patents.google.com/patent/US6095001A/en
Motor vehicle stepped transmission

https://patents.google.com/patent/EP1815162A2/en
Stepped transmission for a motor vehicle

https://www.amazon.it/s?k=motore passo a passo&i=electronics...

https://www.motoripassopasso.it/MotoriPassoPasso_CosaSono.as...
https://patentscope.wipo.int/search/en/detail.jsf?docId=WO20...
https://it.wikipedia.org/wiki/Motore_passo-passo
https://www.atti.it/c/6_121_motori-passo-passo
https://ciaobit.com/componenti-elettronici/motore-passo-pass...
https://elettronicasemplice.weebly.com/motore-passo-passo-st...

https://www.google.com/search?q=motore passo a passo&ei=-tw5...