Sentences with phrase «at all engine speeds when»

Not exact matches

Those cars charge up their batteries with electricity generated when the car brakes and then used that «recycled» energy to power their electric motors, which take over from the vehicle's gasoline engine at low speeds and in stop - and - go traffic.

This also limits the maximum RPM of the engine because there are increased friction losses due to increased speed of the piston at the same RPM when compared to an engine with less stroke.

Because that sounds normal (engines normally run at an elevated speed when they are cold to heat up to their optimal temperature quicker).

Its only ever when you are at low speeds and thus the engine is turning over too slowly that a stall happens.

That direct drive did pose an issue when it came to engine response at high speeds, so Koenigsegg then developed a clutch - slip mechanism that allows the engine to gain revs while in gear.

Since the small electric motor can only power the car when creeping forward very slowly, the gasoline engine is constantly starting and stopping at low speeds with a noticeable shudder.

Additionally, we know more fuel is consumed when the engine isn't running at it's optimum speed for power production.

As one of only 137 1970 Challenger R / T models with the 426 Hemi engine and a four - speed manual transmission, this Dodge was already pretty special when Escalante's father bought it new after falling in love with the car at the Detroit auto show.

So engine braking is actually a «perfect» ABS system when going downhill at low speeds.

In this mode, the gasoline engine can be switched off and decoupled from the driveline at speeds of up to 100 mph when the ActiveHybrid 5 is coasting, helping save fuel at highway speeds.

This also helps when you come into the pits, as all the heat that has soaked into the engine and exhaust requires extra cooling at low speed.

Sometimes check engine light comes on at speeds between 130 - 150 km / h then turns off when I slow down to below 130km / h

However, when the engine is started and then the engine speed drops a little, 10 seconds, then the CEL light comes on and does not flash at all.

Valve float is an adverse condition which can occur at high engine speeds when the poppet valves in an internal combustion engine valvetrain do not properly follow the closure phase of the cam lobe profile.

At speed on the turnpike in Comfort mode, the i8's turbocharged engine is doing business through the rear wheels, and the electric motor kicks in to provide a boost from the front wheels when the throttle pedal calls for it.

So early on, Tesla opted for a two - speed transmission, which posed a vexing engineering challenge when mated to an engine redlined at 13,000 rpm.

At low engine speeds the added power is largely undetectable, although the exhaust seems to burp even more readily when you lift off.

You can speed the tune - up process by being ready to describe what happens and when (such as whether your car hesitates when the engine is cold or when passing at highway speeds), any sounds you hear and what you feel when your car's «illness» shows up.

When decelerating at speeds up to 84 mph, the gasoline engine can be decoupled from the drivetrain so that more kinetic energy can be recovered by the regenerative braking system.

Despite that, it's supremely relaxed when asked to cruise at more normal speeds — an 80mph motorway schlep sees the engine turning barely 2000 times a minute in top gear.

The engine proved smooth at all speeds and easily propels the Flex, even when our 4637 - pound test car was weighed down by three passengers.

Edit: Coolant in some cars passes through a type of fast idle valve that raises and lowers a plunger (connected to some type of heat reactive wax that closes the airway fully when the coolant is at OT) through a tube that feeds more or less air through the engine raising or lowering its speed.

The Wikipedia entry is hard to grok: Valve float is an adverse condition which can occur at high engine speeds when the poppet valves in an internal combustion engine valvetrain do not properly...

In combination with the smooth, quick - shifting dual - clutch transmission, the smaller, torquier engine actually makes the Eco model feel peppier than the standard car, both when accelerating from a stoplight and while passing or merging at highway speeds.

Aside from the slight power increase, chief engineer Dr. Hermann - Joseph Storp says that they worked on the V - 8's sound quality at higher rpm; indeed, when it crosses 3000 rpm the engine emits a muted burble, while at lower engine speeds it's barely audible.

Engine braking happens because when you let off the gas pedal at speed the car makes the choice to provide 0 fuel to the engine allowing the engine to be rotated by the rotation of the tires, unlike when stopped and you release the gas pedal it maintains anEngine braking happens because when you let off the gas pedal at speed the car makes the choice to provide 0 fuel to the engine allowing the engine to be rotated by the rotation of the tires, unlike when stopped and you release the gas pedal it maintains anengine allowing the engine to be rotated by the rotation of the tires, unlike when stopped and you release the gas pedal it maintains anengine to be rotated by the rotation of the tires, unlike when stopped and you release the gas pedal it maintains an idle.

He gets a car with a more reliable engine that won't frag itself after 10,000 miles, doesn't veer for no reason at 70mph when accelerating (no torque steer comments please - read the speed again before you post!)

When you restart it, there's a discordant choir of five or ten or fourteen exhaust heat shields all buzzing at different frequencies while the computer desperately tries - and fails - to keep the engine at a steady speed.

The first part is when the engine is in charge with the hand brake on and the second part is on the move with that noise coming constantly only when in 3rd gear at about 2200 - 2300 RPM, can hear the noise in 2nd 4th and 5th gear only when trying to drive with constant speed and in a gear too high for the actual speed.

However, when you feel the engine's grip on this huge car at speeds between, say, 80 and 160mph, you know it's a real big - hitter.

Unlike most other hybrids, therefore, the engine can cut out when you lift off the throttle, even at highway speeds, which means you can be coasting along at 70 mph and look down at the tach and see the needle sitting at 0 (although it actually says «ready» rather than «0»).

A manual car at 2500 RPM in 3rd gear will burn fuel at a different rate than when it is in 2nd gear at the same engine speed.

The engine was at 6650rpm when 225.675 mph was reached and when they analyzed the data after the record run it showed they were still getting 6 % wheel slip when the record speed was reached.

It's also eerily brilliant when the C300h seamlessly switches the combustion engine off and back on at A-road speeds when you momentarily come off the throttle and, although Mercedes» 2143cc diesel can occasionally be a noisy operator, in the C300h it's remarkably hushed.

The saddest thing is, turbo motors usually use more fuel than their n / a counterparts in normal driving... Only at very low, test - friendly engine speeds (when the turbos aren't spinning) do they actually reduce consumption, but I don't know many people who drive below 1,000 rpm.

Mini's stability control system decides when power is required at the rear, based on acceleration forces as well as speed, accelerator position, engine torque and steering angle.

And although the engine is strong and hushed even at speeds nearing its 6800 - rpm redline, the 750Li is most spectacular when flexing its muscles in the midrange, where two silent turbochargers endow the V - 8 with Herculean torque.

A few also allow an alternate automatic mode, often called «sport» mode, where gear selection is still fully automatic but the transmission will favor higher engine speeds (at which the engine will produce the highest horsepower and / or torque) by up shifting later when accelerating and downshifting earlier when slowing.

If you did, you'd quickly find out that you had almost no acceleration when starting out, and at high speeds, the engine would be screaming along near the red - line.

Based on the VTEC - E system, the simplified motorcycle version of VTEC employs only two of the four valves per cylinder when operating at lower engine speeds.

The better cooling results in higher engine output in hot conditions and at low speeds, such as when sitting in midsummer traffic.

When the turbocharger reaches its full throttle speed, at around 100,000 - 150,000 RPM depending on the turbo's type, and the car's engine develops its maximum torque the front wheels are overloaded and will have a tendency to spin due to the excess torque applied to them.

To help maximize gas mileage, the V - 8 engine is equipped with cylinder - deactivation technology that operates the power plant on 4 of its 8 cylinders under certain driving conditions, such as when coasting down a hill or cruising at a steady rate of speed on the highway.

But the Cobalt distracts its driver from those sounds with a slick five - speed shifter, an electric power - steering system that gets heavier as speed increases and an engine that doesn't hesitate when asked for more power until it redlines at 6,500 rpm.

When paired with either the 2.0 - liter MultiJet II diesel engine, or 2.4 - liter MultiAir2 gas engine, the nine - speed transmission delivers numerous benefits customers will appreciate, including aggressive launches, smooth power delivery at highway speeds and improved fuel efficiency versus a six - speed automatic transmission.

The engine, along with a new seven - speed automatic that can be at times slow to downshift when pressing on the gas, helps the Titan achieve a 28 per cent better fuel economy rating, although standard, active grille shutters also play a role by helping cut drag by some 10 per cent.

The CVT transmission automatically engine brakes when there is no throttle, which then requires the application of more throttle to continue at the same speed (making it less fuel - efficient in the long run).

At typical cruising speeds, the steering feels sterile and remote, the gearchanges smooth and the engine whisks you along on a easy wave of boost — though it is surprisingly noisy at idle and when stretcheAt typical cruising speeds, the steering feels sterile and remote, the gearchanges smooth and the engine whisks you along on a easy wave of boost — though it is surprisingly noisy at idle and when stretcheat idle and when stretched.

The eight - speed automatic gearbox augments your restful state, slipping smoothly up and down its ratios as required, and even decoupling the engine when you lift off at speed - primarily to benefit fuel economy, with the added bonus of reducing engine noise, too.

The Hydramatic 6L80 six - speed automatic that backs both of these engines is programmed to upshift at about 5,500 rpm when the pedal is on the floor, making best use of the power on tap.