MultiMode manual transmission: Difference between revisions

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m Maxeto0910 moved page Multimode manual transmission to MultiMode manual transmission: proper name by Toyota
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This car is a CVT automatic with a parking gear, not an automated manual.
 
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{{short description|Type of automated manual transmission}}
{{Single source|date=March 2019}}
 
A '''MultiMode manual transmission''' ('''MMT''' or '''M/M'''<ref>{{cite web |url=http://www.toyota.co.uk/bv/About_Toyota/glossary/MMT.html |title=MMT - MultiMode manual transmission |___location=UK |publisher=Toyota |archive-url=https://web.archive.org/web/20120413143105/http://www.toyota.co.uk/bv/About_Toyota/glossary/MMT.html |archive-date=2012-04-13}}</ref>) is a type of [[electrohydraulic manual transmission| automated manual transmission]] offered by [[Toyota]]. It uses a traditional manual [[gearbox]] with a computer-controlled [[hydraulic actuator|hydraulic]] [[clutch]] actuated by permanent magnet motors.<ref>{{cite web|url=https://www.techtips.ie/Blue-Print/toyota-multi-mode-transmission-mmt.pdf|title=Toyota Multi-Mode Transmission|website=techtips.ie|accessdate=2022-10-11|format=PDF}}</ref> Multimode Manual Transmission is available in the [[Aygo]], [[Toyota Yaris|Yaris]], [[Toyota Corolla|Corolla]], [[Toyota Corolla Verso|Corolla Verso]], [[Toyota Mark X|Mark X]] and [[Toyota Auris|Auris]] in [[Europe]], and should not be confused with Multimode Automatic Transmission, which is offered in the North American market by Toyota.
 
== Operation ==
The Multimode Manual Transmission has the following gears: R, N, E, M+, M-M−.
* '''R''': R is the reverse gear. It is similar to R in both traditional manual and in fully automatic cars.
* '''N''': N is the neutral gear. It is similar to N in both traditional manual and full automatic.
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* '''Parking''': Unlike an automatic car, the P gear is absent in a MMT car. The car should be parked in the following fashion. In an up-sloping incline, put the gear to M1, or E, apply handbrake, and switch off the engine. In a down-sloping incline, put the gear to R, apply handbrake, and switch off the engine. On level ground, put the gear to R, apply handbrake, and switch off the engine. R or E/M1 substitute the P function in a full automatic.
* '''Moving off from Park''': The engine can only be started with the gear in N. To start, switch on the car to ON position (this releases the gear lock), depress brake pedal, put the gear to N (from either R or E/M1), and switch on the engine.
* '''L/1 and 2 gears in a full automatic''': The MMT does not provide L/1 and 2 gears as in a full automatic. One action of the MMT system is that it detects the gradient of the slope that the car is situated in. On a down-sloping incline and if the brake pedal is depressed, it automatically selects a lower gear to produce engine brake, which has the equivalent effect of L and 2 gears in a full automatic. L and 2 can also be substituted with E1 and E2 (not available in [[Aygo]]) or M1 and M2 gears in a MMT car. To select E1 or E2, put the gear to E, and use + and - pedal flaps on the steering wheel to override the computer selection. E will change to E1/E2/E3/E4/E5/E6, depending on the gear selected. Downshift to E1 or E2 as appropriate to simulate L and 2 gears in a full automatic. To select M1 or M2, put the gear to M, and use M-M− gear to downshift the gear to M1 or M2.
* '''Kick-down''': In E mode, the [[Automatic transmission#Manually controlled automatic transmissions|kick-down function]] in a full automatic can be similarly activated in an MMT car. Additionally, the kick-down function can be manually activated using the - pedal flap on the [[steering wheel]] in E mode. This overrides the computer setting and E changes to E1/E2/E3/E4/E5/E6. To stop the [[manual override]] under E mode, pull and hold the + flap on the steering wheel, until the E1/E2/E3/E4/E5/E6 changes back to E. Alternatively, wait for the next computer activated gear change.
* '''Reverse''': The car reverses as in an automatic car. To reverse, depress brake pedal, and change the gear to R. Gradually lift off the brake pedal to allow the car to creep backwards. On a down-sloping incline, the creep function, simulated using the slipping clutch, is not sufficient to prevent the car from rolling forward. In this case, the car must not be held still using the accelerator pedal, as the excessive clutch slipping will lead to clutch damage. Handbrake should be instead applied, and the accelerator pedal should be depressed slightly.
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== Operation under M mode ==
Under M mode, sequential gear shifts can be made by changing the gear to M+ and M-M−. Under M mode, the gear selected will be displayed as one of M1/M2/M3/M4/M5/M6 on the [[dashboard]]. Under M mode, the gear will not change even if the engine RPM reaches redline, which will probably lead to engine damage. However, the user is prevented from excessively downshifting to a gear that exceeds the maximum revolution possible for the engine, or excessively upshifting to a gear that may lead the engine to stall. When the car is braked to a complete stop, the M1 gear is automatically selected.
 
== Competitors ==
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{{reflist}}
 
== External links ==
A picture of the multi-mode transmission on left-hand drive vehicle. [https://web.archive.org/web/20110720124959/http://www.hatauto.ee/bw_client_files/hatauto/public/img/Image/toyota%20english/Yaris/yaris16.jpg] [http://www.hatauto.ee/?id=2038]
 
{{DEFAULTSORT:Multimode Manual Transmission}}