Page 1 of 3 123 LastLast
Results 1 to 10 of 26

Thread: "B" gear on the CVT

Hybrid View

Previous Post Previous Post   Next Post Next Post
  1. #1
    Senior Member
    Join Date
    Jan 2014
    Location
    Earth
    Country
    United States
    Posts
    422
    Garage empty: add car
    Thanks
    38
    Thanked 93 Times in 64 Posts

    "B" gear on the CVT

    What is it exactly? Only to keep the rpms high to get more torque?

  2. #2
    Junior Member
    Join Date
    Apr 2014
    Location
    maine
    Country
    United States
    Posts
    19
    Thanks
    0
    Thanked 10 Times in 3 Posts

    b gear on cvt

    Quote Originally Posted by cookiemonster View Post
    What is it exactly? Only to keep the rpms high to get more torque?
    I think its just an overdrive that makes the transmission shift sooner to get you up to speed. I never used it when test driving a mirage last week. Its funny how all the professional reviews Ive read never mention it but many complain about how slow the car is merging etc.......which I disagree with totally, and I didn't even use the B mode.

  3. #3
    Senior Member
    Join Date
    Jan 2014
    Location
    Earth
    Country
    United States
    Posts
    422
    Garage empty: add car
    Thanks
    38
    Thanked 93 Times in 64 Posts
    Quote Originally Posted by ironhead View Post
    I think its just an overdrive that makes the transmission shift sooner to get you up to speed. I never used it when test driving a mirage last week. Its funny how all the professional reviews Ive read never mention it but many complain about how slow the car is merging etc.......which I disagree with totally, and I didn't even use the B mode.
    Thanks ... yeah, I haven't had any problems merging on "D" either, but "B" gives it a good kick. I've been switching back and forth between D and B to break in the engine ... just over 100 miles so far

  4. #4
    Quote Originally Posted by ironhead View Post
    Its funny how all the professional reviews Ive read never mention it but many complain about how slow the car is merging etc...
    Believe it or not, there was ONE reviewer who did mention B mode. He said he had a blast with the CVT in B.

    Thread: US: Mirage review - Driving the Highest MPG Car in America* (Gas2.org)

        __________________________________________

        click to view fuel log View my fuel log 2014 Mirage ES 1.2 manual: 63.2 mpg (US) ... 26.9 km/L ... 3.7 L/100 km ... 75.9 mpg (Imp)


  5. #5
    Moderator
    Join Date
    Jul 2015
    Location
    Mitsu
    Country
    United States
    Posts
    1,359
    Garage empty: add car
    Thanks
    256
    Thanked 315 Times in 246 Posts
    Quote Originally Posted by MetroMPG View Post
    Believe it or not, there was ONE reviewer who did mention B mode. He said he had a blast with the CVT in B.

    Thread: US: Mirage review - Driving the Highest MPG Car in America* (Gas2.org)
    Ha-ha-ha, so "B" dubs as Sport mode! they should have named it a BS (brake/sport) mode.

        __________________________________________

        click to view fuel log View my fuel log 2015 Mirage DE 1.2 manual: 46.4 mpg (US) ... 19.7 km/L ... 5.1 L/100 km ... 55.7 mpg (Imp)


  6. #6
    Moderator inuvik's Avatar
    Join Date
    May 2015
    Location
    Coos Bay, OR
    Country
    United States
    Posts
    3,835
    Thanks
    4,761
    Thanked 1,562 Times in 1,120 Posts
    Quote Originally Posted by cyclopathic View Post
    Ha-ha-ha, so "B" dubs as Sport mode! they should have named it a BS (brake/sport) mode.
    I wonder what the 0-60 times are using "B"? It's really low geared so I'm wondering if you maxed out in B then upshifted what kind of times you'd get. I know I've gotten the traction control to kick in when I've accelerated pretty hard in B. Wasn't floored either.

        __________________________________________

        click to view fuel log View my fuel log 2015 Mirage ES 1.2 automatic: 40.5 mpg (US) ... 17.2 km/L ... 5.8 L/100 km ... 48.6 mpg (Imp)


  7. #7
    Moderator
    Join Date
    Jul 2015
    Location
    Mitsu
    Country
    United States
    Posts
    1,359
    Garage empty: add car
    Thanks
    256
    Thanked 315 Times in 246 Posts
    Quote Originally Posted by inuvik View Post
    I wonder what the 0-60 times are using "B"? It's really low geared so I'm wondering if you maxed out in B then upshifted what kind of times you'd get. I know I've gotten the traction control to kick in when I've accelerated pretty hard in B. Wasn't floored either.
    Test it. Do you have OBDII reader and Torque App?

    I would not be surprised if 0-60 is quicker than manual.

        __________________________________________

        click to view fuel log View my fuel log 2015 Mirage DE 1.2 manual: 46.4 mpg (US) ... 19.7 km/L ... 5.1 L/100 km ... 55.7 mpg (Imp)


  8. #8
    Senior Member
    Join Date
    Apr 2018
    Location
    Atlanta Metro
    Country
    United States
    Posts
    3,527
    Thanks
    37
    Thanked 1,393 Times in 1,010 Posts
    Quote Originally Posted by ironhead View Post
    I think its just an overdrive that makes the transmission shift sooner to get you up to speed.
    ironhead - You misunderstand what an overdrive is. So did I for a long time. The majority of the time it is a reference to the gearing of a transmission. And stems from historical advancements of the automobile due to cars getting faster.

    Old school 3 speed transmission, like in my 72 Plymouth Scamp. 1st & 2nd gear are underdrive gears. 3rd gear is drive gear 1:1

    Underdrive are gears that allow the engine to spin faster than the transmission output shaft (driveshaft). Engine spins at say 2,000 rpm, the transmission output shaft spins at 1,500 rpm.

    Drive gear is 1 to 1. Engine spins 2,000 rpm, transmission output shaft spins at 2,000 rpm.

    Overdrive is greater than 1 to 1. Engine spins at 2,000 rpm, transmission output shaft spins at say 2,200 rpm.

    The Mirage's manual transmission is 3 underdrive gears, and 2 overdrive gears (no drive ratio, which i can't understand why because 1:1 in a manual is achieved without having to manufacture at least one cog. 1st - 5th = 3.545, 1.913, 1.31, 0.972 and 0.804.

    The Mirage CVT would actually be able to achieve an infinite number of such ratios as listed above, including overdrive ratios. However it seems like a G4 CVT I rented one time, the CVT would sort of hold ratios and fake in some "shifts." But maybe that was a different vehicle I'm thinking of.

    The B mode must be controlling the CVT biasing it toward the underdrive ratios...

        __________________________________________

        click to view fuel log View my fuel log 2020 Mirage ES 1.2 manual: 42.4 mpg (US) ... 18.0 km/L ... 5.6 L/100 km ... 50.9 mpg (Imp)


  9. #9
    Moderator inuvik's Avatar
    Join Date
    May 2015
    Location
    Coos Bay, OR
    Country
    United States
    Posts
    3,835
    Thanks
    4,761
    Thanked 1,562 Times in 1,120 Posts
    Quote Originally Posted by 7milesout View Post
    ironhead - You misunderstand what an overdrive is. So did I for a long time. The majority of the time it is a reference to the gearing of a transmission. And stems from historical advancements of the automobile due to cars getting faster.

    Old school 3 speed transmission, like in my 72 Plymouth Scamp. 1st & 2nd gear are underdrive gears. 3rd gear is drive gear 1:1

    Underdrive are gears that allow the engine to spin faster than the transmission output shaft (driveshaft). Engine spins at say 2,000 rpm, the transmission output shaft spins at 1,500 rpm.

    Drive gear is 1 to 1. Engine spins 2,000 rpm, transmission output shaft spins at 2,000 rpm.

    Overdrive is greater than 1 to 1. Engine spins at 2,000 rpm, transmission output shaft spins at say 2,200 rpm.

    The Mirage's manual transmission is 3 underdrive gears, and 2 overdrive gears (no drive ratio, which i can't understand why because 1:1 in a manual is achieved without having to manufacture at least one cog. 1st - 5th = 3.545, 1.913, 1.31, 0.972 and 0.804.

    The Mirage CVT would actually be able to achieve an infinite number of such ratios as listed above, including overdrive ratios. However it seems like a G4 CVT I rented one time, the CVT would sort of hold ratios and fake in some "shifts." But maybe that was a different vehicle I'm thinking of.

    The B mode must be controlling the CVT biasing it toward the underdrive ratios...
    The CVT in the Mirage is actually a dual range transmission. "B" is the same as "L". You can do 60 mph / 100 kph easily in "B" or "L".

        __________________________________________

        click to view fuel log View my fuel log 2015 Mirage ES 1.2 automatic: 40.5 mpg (US) ... 17.2 km/L ... 5.8 L/100 km ... 48.6 mpg (Imp)


  10. The Following User Says Thank You to inuvik For This Useful Post:

    mohammad (11-18-2021)

  11. #10
    Senior Member
    Join Date
    Aug 2017
    Location
    SW, WI
    Country
    United States
    Posts
    7,402
    Thanks
    594
    Thanked 2,688 Times in 2,106 Posts
    Quote Originally Posted by inuvik View Post
    The CVT in the Mirage is actually a dual range transmission. "B" is the same as "L". You can do 60 mph / 100 kph easily in "B" or "L".
    Which is different than using "L" on your more typical automatic transmissions.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •