Sentences with phrase «at low engine speeds when»

Things change during moderate - speed cruising and at low engine speeds when the rear bank of cylinders shuts down to effectively create a three - cylinder powerplant.

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.

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

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.

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

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

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.

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.

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.

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.

This is only happening at low speeds or when the engine is idling and I have my foot off the brake.

Mercedes says the special shape of the engine's steel pistons, which run in motorsport developed «nanoslide» cylinder coatings, reduce soot build - up even when running at low speeds.

The 4 - cylinder uses Honda's i - VTEC and Variable Timing Control (VTC), which makes more power at high engine speeds for best acceleration, but at low speeds, like when you're cruising down the highway, it retunes itself for better fuel economy.

The engine is so brilliantly engineered that it never knocks or feels uneasy even when you are in high gears at low speeds.

The higher top gear not only reduces fuel consumption but the lower engine revs improve comfort and reduce noise when cruising at a sustained speed.

At low speeds in city traffic, I noticed there's a slight delay from the moment you stab the throttle until the engine kicks in — and when it does, the power delivery is rather brutal than linear.

While the engine is very quiet and smooth at low speeds and when you're cruising, it does get a bit thrummy after 5000rpm, and it isn't as smooth as say, the bigger TSI motors we have experienced in the old A4.

At higher speeds, when more feedback is desired, the system automatically reduces boost to improve steering feel while simultaneously lowering parasitic drag on the engine.

On the move the 148bhp 2.0 - litre diesel engine does have a bit of characteristic diesel clatter at lower speeds, but it pulls strongly from low revs and when paired with the seven - speed automatic gearbox it makes for smooth progress.

When driving at constant speeds, if the engine is on, the system operates in high range at lower engine speeds and powers.

This is very much an engine in the traditional diesel mould, with a little «rattle» at idle (especially when cold) and lower engine speeds, and a hint of step - off lag from standstill.

It's manifested as a laboured vibration when lugging from low engine speeds and a bothersome resonance at 2,500 rpm (a speed that coincides with 100 - km / h in fifth).

The mounts stay soft at lower engine speeds to quell noise and vibration, then turn near - solid to keep the transmission from twisting when you hammer the throttle, sending more power to the wheels.

Conversely there is very little information on how the VOLT accomplishes the same task of seeking to depress its engine rpms at low load particularly when just cruising at high road speeds.

The low valve lift cam profile is used at low to mid engine speeds to maintain idling quality and reduce emissions, while the high lift cam profile is used when the engine is spinning at mid to high engine speeds improve peak horsepower and torque.

But, this potent internal combustion engine also benefits from a regenerative - powered electric motor driving the rear wheels either automatically when required during cornering and in strong acceleration — giving a power boost of as much as 45 ps — or in a button - activated creep - mode at low speeds to avoid emissions in city traffic or when «stealth» is required.

When the first mode operates as electric only, fuel consumption is reduced in heavy stop - and - go traffic by shutting off the engine for extended periods of time and moving exclusively under electric power at low speeds.

Port injection works at low speeds, its quiet operation keeping the engine from rattling, while the direct injection takes over when the engine is working hard, road sounds masking the injector rattle.

It is only when you step hard on the accelerator at a low speed that you can hear the engine sucking in air as it winds up.

Because the engine develops much of its power at low speeds, I found that I was constantly unintentionally making the rear wheels spin when starting from a stop or during low - speed cornering.

Includes 12 - way power driver and front passenger seat adjusters including 4 - way power lumbar control 2 - position driver memory adjustable head restraints (D07) floor console and storage pockets and (K4C) wireless charging (STD), LICENSE PLATE KIT FRONT, TRAILERING WIRING PROVISIONS FOR TRAILERING FIFTH WHEEL AND GOOSENECK TRAILER includes additional 7 - way wiring harness is located at the rear of the pickup box attached to the rear frame cross member, DENALI PREFERRED EQUIPMENT GROUP includes standard equipment, TIRES LT265 / 60R20E ALL - TERRAIN BLACKWALL (STD), MIRRORS CHROME OUTSIDE HEATED POWER - ADJUSTABLE VERTICAL TRAILERING MEMORY - EQUIPPED UPPER GLASS POWER - FOLDING AND MANUAL EXTENDING; Includes integrated turn signal indicators consisting of 51 square inch flat mirror surface positioned over a 24.5 square inch convex mirror surface with a common head and lower convex spotter glass (convex glass is not heated and not power - adjustable) and addition of auxiliary cargo lamp for backing up (helps to see trailer when backing up with a trailer) and amber auxiliary clearance lamp, LAMPS SMOKED AMBER ROOF MARKER, HILL DESCENT CONTROL, LPO REAR UNDERSEAT STORAGE COMPOSITE STORAGE BIN, DURAMAX PLUS PACKAGE includes (L5P) Duramax 6.6 L Turbo - Diesel V8 engine and (VQY) chrome recovery hooks LPO (MW7) Allison 1000 6 - speed automatic transmission (Includes (DQS) outside memory equipped heated power - adjustable vertical trailering mirrors.)

The 3.2 - litre five - cylinder engine feels less stressed than smaller - capacity units like the Pajero Sport's, the surfeit of torque allowing lower engine speeds when cruising, in turn improving fuel economy, which at 12.5 L / 100 km was on par with the Fortuner in the middle of this pack.

The intercooler is built into the inlet manifold, located at the front of the car, and the port injectors operate at lower engine operating speeds to deliver better fuel charge formation when the fuel and air charge is created in the inlet ports.

The hybrid powertrain uses a 1.0 - liter engine with battery - assisted acceleration at low speeds and the gasoline engine clutches to drive the wheels when more power is required.

However, the manual model's altered gearing and slightly delayed throttle response at lower engine speeds did see a very slight touch of understeer come in to play when pushed a little hard.

The dual - mass flywheel with integrated centrifugal pendulum develops its positive effect when driving at low revs: it balances out rotational unevenness in the event of sudden torque request, thereby promoting vibrational and acoustic comfort when accelerating out of the low engine speed range.

The ZF occasionally baulks at requests for a lower gear when engine speed is too high, causing a need to double - pull the left paddle.

This newly developed function automatically switches the engine off when the driver shifts to neutral at low speed whilst depressing the brake pedal.

The Cayenne Hybrid takes advantage of this electric power reserve to shut its engine down at stoplights, accelerate at low speeds using its electric motor, and do what Porsche calls «sailing» when coasting on the highway.

Being of a smaller displacement of only 2.0 litres, there was a noticable big pick - up in power in the first gear when the engine is still running off - boost, but right after 1,800 rpm boost kicks in with strong force — you wouldn't want to be caught doing a maneuver like a U-turn at low speeds when that happens because the back would surely swing.

A bit of lag can be felt when pulling away at lower engine speeds, but in general the SLC300 provides swift and confident progress.

It's sandwiched between the transaxle and gas engine and can decouple via a clutch to save fuel in all - electric mode at lower speeds, or up to 84 mph such as when coasting down a hill, with foot off the gas, or decelerating.

The newly engineered exhaust system not only lowers back pressure, it also delivers all the music of the mighty twelve - cylinder engine - from a moderate rumble when rolling through the city at low revs to the screaming crescendo of gears spinning at top speed.

The tachometer needle also points to a wide, green band when the engine is off, at a stop or at low speeds.

However, I think it's also to blame for some awkward hesitation I experienced in stop - and - go traffic; my theory being that the gas - electric transition of the engine doesn't always mesh with the clutch - actuated shifts when creeping at very low speeds.

This Ti - VCT engine, delivering at least 280 horsepower and E85 compatibility, is mated to a unique six - speed automatic transmission that combines lowered initial gears for improved off - the - line acceleration and higher gearing for improved efficiency at lower engine rpm when cruising.

NVH levels are quite good when the car is doing low speeds but the engine gets very audible at high speeds and there is a lot of wind noise from the area near the A-pillar.

Triple - digit speeds can be reached without breaking a sweat and when you just want to cruise lazily around town, the engine will hum at low rpm to totally fly under the radar.