Mike J.

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Mike J. last won the day on April 8 2019

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About Mike J.

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  • First Name
    Mike
  • Gender*
    Male
  • Toyota Model
    None - previously Yaris Hybrid T Spirit
  • Toyota Year
    2013
  • Location
    Suffolk
  • Interests
    Health & Beauty

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  1. You don't know enough about the hybrid. The hybrid engine has no belts to snap, the water pump is electric (so heating works with engine off), the air conditioning pump is electric (so cooling works with engine off), the alternator is part of the CVT, the power steering is electric and the brake boost is via an electric pump - thus reliability is very high. The hybrid stop start system is the best in the world and it treats the engine especially well - the starter motor (also acts as the alternator/generator within the CVT, so a big weight saving) spins the petrol motor to around 1000 rpm and then gently adds fuel and spark so that: oil pressure is up before engine 'starts', no horrible starter motor whine, no vibration starting, quiet starting. All other stop/start systems are an embarrassment. In summary, the Yaris hybrid is the best and nippiest small city car in the world, EVs excepted - check out the 0-30 mph time of just 4 seconds.
  2. An observation: the new engine might be a bit tight and, if so, the mpg should improve over time. Even if the mpg ends up similar to the 1.33, consider the merits you now have: the stop/start system is the best you will ever get this side of an EV, it is a small automatic car, it is quiet and its performance off the mark is better than most cars. You basically have a car that drives like an EV, but is noisier under full power. As mentioned, leave aircon on all the time, set it to auto and just dial the temp.
  3. No, I think the engine is powered by petrol to get to certain revs. as this allows the MG1 rotation to be kept below the limits set by Toyota (6500 rpm software limit) - there would be little power used and so mpg is easily over 100.
  4. I would imagine that it is powered so appropriate rpms are reached, but no real power added to the system.
  5. The engine has to rotate when the electric motor (MG1) reaches a certain rpm - this is a characteristic of the hybrid's CVT design. More info here: Power Split Device animation but you need Adobe Flash to view the animation. As mentioned on the website "Rotation speeds of MG1, MG2, and ICE are inter-dependent, and the speed of MG1 will always change when you vary the speed of either of the other 2. MG1 has a maximum rate of 10,000rpm in either direction (positive or negative) with a software limit of 6500 RPM if ICE is off. Using the model below, you can see for yourself why this software limit means the ICE will always spin if you're travelling above 42mph. And in case you were curious, yes MG1 can and often does change spin directions under normal driving conditions". Note that newer generations of PSD have differing rpm limits and speeds, but the theory is similar.
  6. There is a proper kit for this, sold by Toyota. Note that you are only allowed to use it for bike rack type things - not for towing!
  7. If you read the manual, it shows where you can connect jump leads - connections are under the bonnet. This might be an option to use when connecting a trickle charger.
  8. Some good info and downloadable pictures - looks like a HUD option is available - probably not for the UK, same as the 1.5kW output that the Japanese find useful during (frequent?) electricity blackouts. Nice 4WD axle picture - no spare wheel space with this option? Will there be a pre-heat option ….???
  9. Nice work by Toyota, more compact CVT gear train with higher speed EV mode, the latest Atkinson motor and over 30% more power from the electric motor which should give excellent performance from standstill. From the pictures the battery looks like it is around 0.75kWh with probably 48 3.7 volt cells. Check out the Lithium battery used in a non-plugin US Prius as a comparison: https://voltaplex.com/learn/prius-2017-lithium-ion-battery-teardown/ If the car is able to do more miles in EV mode, the lithium battery is probably used harder and deeper as the old battery had more kWh, (0.9 but seemed to use just the 'middle' 25%) and only did around 1 mile. Also, the cat position looks unsteal-able!
  10. Its a hybrid and I gave up t-shirts years ago. FWIW, I have just 'told' my car to be snug and warm for a 6am start tomorrow - which is nice. If my old Yaris had this facility I would still have it - they are great urban cars.
  11. I have two possible ways to help reduce the problem: most Toyota cars (post 2012?) have stability control that uses motion sensing - Toyota could reprogram these cars to alarm on tilting. Toyota should allow 3rd party cats (£200 and not wanted by the perps?) to be fitted without warranty issues - no more 3 month waits for £1000 cats that might be stolen the next day..
  12. Unless they do a PHEV version, cabin heating and battery charging uses the petrol motor so fuel will be used in winter. Then again, there will be the odd trip that can be done pollution 'free', if you dress up warm and use just the heated seats and steering wheel with no cabin heating - you might get a few miles as long as the screen doesn't mist/freeze up.
  13. With the Rover SD1, oil goes down the middle of the mainshaft to lubricate items that won't get splash lubricated. My conjecture is that oil is also pumped down the middle of the two epicyclic gear sets (around the oil pump shaft) for the same reason. Check out holes in the shaft of the Power Split Device Planet Carrier.
  14. In neutral, there is no energy created, otherwise you couldn't move the car! The lack of flowing transmission oil/coolant is the issue as with older manual transmissions with oil pumps.
  15. If I remember correctly, the engine will start if the speed is over around 42mph, so some protection if speeds are high and you are not using B mode.