is adaptive cruise control fuel efficient
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is adaptive cruise control fuel efficient Post Review
Our test car for the December break is really missed. The @KiaMotorsSA Grand Sedona is fuel efficient, practical and has a lot of space for passengers and luggage. Family and friends loved it. We’d like to see things like adaptive cruise control & lane keep in the next version.
The @DemandDetroit Detroit Assurance 5.0 Adaptive Cruise Control to 0 MPH is everything you'd want in a cruise control system: Safe Fuel efficient Improved driver comfort
is adaptive cruise control fuel efficient Q&A Review
Does cruise control actually save gas or is that a myth?
That depends on the driver and what sort of cruise control you have. I have adaptive cruise control and on moderately winding roads I can do better than the cruise control. On the open road I just set and forget.
In a hino 700 truck, what is more fuel efficiant, cruise control or manual driving?
Usually cruise is better, but it’s route and traffic dependent. On a flat highway with consistent traffic, cruise is absolutely better. If there is slowing up and down due to traffic, a human can in some cases do a better job of anticipation. One of my vehicles has adaptive cruise, with radar or something, and it does a decent job in traffic, but it brakes and accelerates more abruptly than I would myself. I appeciate that I’m not obligated to be quite as attentive, though, and look forward to more self-driving cars in the future.
Is the US Air Force already working on a 6th generation jet to one day replace the F22 Raptor?
While the Navy is working with the ,U.S. Air Force, on a next-generation tactical fighter with super cruise ability, there is disagreement over the propulsion system to be adapted. Engine development is yet another area of major leap-ahead technological focus, The Air Force is looking at “Variable Cycle Engines” that introduce a third air stream into an engine, which can be controlled by the pilot. The new engines reportedly massively increase an aircraft’s reach, fuel efficiency and speed. USAF 6th gen fighter design by Boeing(top) and Northrup (bottom)
Why do US drivers prefer car automatic transmissions over manual transmissions, when manual shifting and playing with the clutch pedal is part of the fun of driving?
I wouldn’t get a manual transmission in any car I plan to daily drive for the following reasons (I’d probably get a manual on a sports car): Most modern automatic transmissions allow you to shift gears yourself either through paddle shifters or other means. Manual transmissions aren’t pleasant to drive in stop and go traffic Most cars that I would desire to own either aren’t offered in a manual transmission or only offer them on the lowest trim level Modern driver assistance technology like adaptive cruise control doesn’t work very well (I wonder if any cars even offer adaptive cruise control with a manual transmission) Modern automatic transmissions are generally more fuel efficient than the manual
Why should I buy an automatic car instead of a manual car?
Automatics are: Faster More fuel efficient (allowing for cylinder deactivation) Easier to drive in traffic Easily afford various other features such as: Remote start Adaptive/cruise control
What pros and cons does your car have?
Mine is a Hyundai i20 2019, 7 speed auto (DCT), 100hp There are not too many reviews online (for the 2019 model) so I guess this answer might be helpful for a few people. Pros For a small car, it looks pretty nice It’s loaded with options (cruise control, heated seats, heated side mirrors and steering wheel, Apple CarPlay and Android Auto, backup camera and sensors, lane keep assist, automatic windshield wipers, automatic headlights and high beams, …) It has a 1.0 petrol turbo engine (T-GDI), but it accelerates pretty quickly and has a nice little engine sound (although it’s pretty quiet when not driving sporty) It’s a DCT, meaning I can shift manually if I want to It handles well. It remains very stable even at high speeds (140 km/h and above, don’t ask me how I know) It’s very fuel efficient (on average, 5.5 l/100km / 42 mpg) It has plenty of room for a car of this category The reliability is great 5 year warranty, unlimited mileage Cons Not very good for overtaking at high speeds (100 km/h and above). You can still overtake, but you need a longer distance than with more powerful cars. In terms of options, the only useful and “modern” options missing are adaptive cruise control, blind spot assist and front parking sensors Would be great to have a snow mode for better handling in the snow Crappy start/stop system, always on by default. This is an issue when I stop at roundabouts for a couple of seconds and the engine stops. When this happens, it takes quite some time for the engine to start and get going again, which is not very safe in such situations. Every time I start the car, I have to disable this feature, which is annoying. The infotainment system does have Bluetooth and we can stream music on it, make phone calls, … Although, to use Apple CarPlay, a USB cable is necessary. makes sense, right? So far I’ve done over 33k kms (20k miles) in 11 months and I never had any issue. Let me know if you have any questions. :) Here are a few additional pics:
What are some of the key trends in the adaptive cruise control industry?
Global Adaptive Cruise Control (ACC) Market is estimated to reach USD 26240.87 million by 2027, growing at a CAGR of 18.1% between 2019 and 2027 The global adaptive cruise control market is expected to witness a CAGR of 18.3% during the forecast period to reach $15,290 million by 2023. Adaptive Cruise Control regulates the speed of the vehicle to maintain a safe distance from other vehicles on the road. Rise in vehicle production and continued R&D towards vehicle safety is taking place in the adaptive cruise control market. The adaptive cruise control is an intelligent form of cruise control that slows down the vehicle if the preceding vehicle slows down, or if another object is detected, the system sends a signal to the braking system of engine to decelerate the speed of the vehicle. When the road is clear, the speed is restored. The key trend driving the global adaptive cruise control market is strong growth in luxury vehicles as most of the vehicles are equipped with advanced safety features. The growth is mainly due to new product launches, expansion of dealer network by companies in the emerging market and better financing availability. The three German luxury car makers - Audi, Mercedes-Benz and BMW are expanding their dealer networks in the tier-2 and tier-3 cities. With increase in import duties and other taxes levied on imported cars, luxury car manufacturers have opted for product localization strategy, which helps them to reduce the overall cost of the vehicle. Increasing disposable income with a section of the population, which is the target audience for such products, is aiding the growth of luxury cars in the country. Awareness towards advance safety features and fixing them in their vehicles is one of the emerging trend. To avoid road accidents and improve vehicle performance and efficiency, customers are asking automakers to install advanced driving assistance systems, especially the adaptive cruise control (ACC) system. Adaptive cruise control is one of the major safety systems, which is gaining attention and is widely being installed across different models, ranging from luxury vehicles to lower and mid-segment cars. Key models of automotive manufacturers that include Volkswagen Polo, Chevrolet Volt, Volkswagen Jetta, Nissan Murano and Ford Fusion come with adaptive cruise control system. Rising number of accidents is one of the major drivers pushing the growth of the adaptive cruise control market. Road accidents are among the leading causes of deaths across various regions around the globe, with Africa accounting for highest road traffic-related accidents, followed by Asia-Pacific. According to WHO, deaths due to road accidents worldwide increased from 1.25 million in 2013 to 1.34 million in 2015. Consequently, there has been an increasing demand for safety and comfort features in vehicles, which in turn, is encouraging the vehicle manufacturers to install the ACC system in the vehicles. Vehicle safety regulations and initiatives by various associations and trade unions are backing the increasing installations of ACC systems in vehicles. Governments and associations across the globe have been increasingly formulating multi-dimensional policies toward vehicle and passenger safety, increasing fuel efficiency and improving overall performance of the vehicle. Government regulations related to vehicle safety are increasingly becoming stringent and the vehicles produced across Europe and North America are required to be equipped with safety features such as ACC. One of the major restraints for the global ACC market is the failure of ACC to give exact information in adverse weather conditions. The ACC uses a laser sensor, which fails to track exact data in case of heavy rainfall or snow, thus increasing the chances of road accidents. Radar-based adaptive cruise control is typically capable of tracking vehicles, regardless of paint or weather conditions; however, none of these ACC systems are infallible. By product type, the global adaptive cruise control market can be categorized into Lidar, Radar, and Laser. In 2016, radar segment accounted for the highest share in global adaptive cruise control market and gathered 33.7% share in the global market. The radar sensors detect the distance between the two cars, which results in the increased safety of the passenger. This increased concern regarding passenger safety, has led to the growth of this market. On the other hand, lidar segment is estimated to witness the fastest growth in the global adaptive cruise control market. The major factors driving the growth of the radar and lidar is rising adoption of adaptive cruise control system in passenger car and commercial vehicles. As per application side, the global adaptive cruise control market can be segmented Passenger Cars and Commercial Vehicles. The passenger car segment is expected to dominate the market during the forecast period due to the increase in sale of passenger cars in emerging nations such as India, China, and Japan. Growth in sales of passenger vehicles in India was the fastest among the eight largest auto markets in the world in 2016. The major factors driving the growth of the adaptive cruise control market includes growing demand of passenger cars and commercial vehicles globally. A la profsharemarketresearch
Boeing B-52 Stratofortress: Could the B-52 be powered by four modern engines (such as the GE90 on the B777)?
In short, yes. ,The B-52 Stratofortress ,could with relative ease be retrofitted with ,four, higher bypass turbofans of the ,30–40k lbf thrust class,. The ,GE90 however,, would definitely ,not, work. I shall break it down below into a few parts to give you the most comprehensive answer I can. Part 1: The Case Against the GE90 (And answering your initial question) For one, the GE90 is far too powerful for the B-52’s wings and wing pylons, and would require a significant redesign and probably add two or more years of additional costs, development, testing and certification, which just wouldn’t make sense. Subsequently, it was pretty much never even considered for the role. The ,current B-52, produces around ,136,000–140,000 lbf, (lbs of force [or thrust]) with all eight engines at full power. A ,B-52 with GE-90,’s could potentially produce ,over 460,000 lbf, at take off, assuming the engines didn’t break off the wings of course, haha. Further more, the ground clearance required for the GE90 simply wouldn’t fit under the B-52’s wing, even if you only tried to put two. Albeit, there would definitely be anxiety over at the pentagon over having a large subsonic non-stealth bomber with only two engines. The excess drag created by the massive engines would also become an issue that greatly affect the aircraft’s flight characteristics. Furthermore, replacing/maintaining a massive engine is not only more expensive but also requires more ground handlers over a longer period of time. Part 2: The Old Case For Four Engines. The picture above represents a “what if” four engine design. However,, various proposals from the 1990’s and early 2000’s showed an updated B-52 equipped with either four ,Pratt & Whitney PW2040/43, engines or four ,General Electric CF6–6, Engines. ,(An early proposal included the possibility of the CFM56, but appears to have been largely dismissed due to the lack of power and reliability the CFM56 had at the time.), With the four new engines, improvements to overall range, fuel efficiency, and reliability would be notable, but not significant. You’d see the B-52’s ferry. range increase by about 5–6% overall from around 8,762nmi (16,232 km) up to 9,200nmi (17,000 km). The biggest benefit would come from the fact that while now older engines, the PW4000 and CF6 are still well supported and produced (the CF6 at least), with parts availability and accessibility being exceptionally high in both commercial and military fleets around the world, while keeping the cost of parts very low. Their significantly smaller fan diameter compared to the GE90, would allow the PW4000 or CF6 to be accommodated with minimal modifications/enhancements to the air frame and wings. While the overall wing would need to be strengthened slightly, such a task can be completed at a relatively low cost compared, especially if done in large numbers. Nonetheless, both options are ageing and have largely been found to be no longer appropriate. Above is what appears to be a B-52 with either CFM LEAP-1D or GEnX with a noticeably redesigned, strengthened and stiffened wing, wing pylons, leading edge, and the addition of winglets for increased long range performance. Part 3: The New Case For Four….or Eight New Engines. Much has happened since the early 2000’s, and the U.S Air Force has now begun to seriously take a look at re-engining the fleet, and engine manufacturers are listening. Amongst the first considered was a derivative of the CFM56–5C/7B, which would produce around 34,000 lbf each (136,000 lbf total) at take-off - a near perfect match with today’s B-52’s thrust output. However, gains in terms of fuel efficiency would be much improved, around 12%. This could provide a ferry range increase of over 1,000nmi bringing it to 9800nmi (18,174 km / 11,293 miles). With less air-to-air refuelling, the aircraft can easily reach and return from anyplace in the world at just about anytime. However, the CFM56’s while still in production are beginning to wind down. While spares and parts will undoubtedly be produced for the literally tens of thousands of CFM56 engines in service for decades to come, its still better to think ahead. Since the CFM LEAP and P&W PW1000G increase the bypass fan size even more, they would unfortunately not be the most effective candidates for the re-engining. ,General Electric, has realized this and has proposed the ,GE Passport 20, engine (developed for the Bombardier Global 7500/8000 and as a future replacement for the CF34). The Passport 20 would offer a new engine that uses proven technologies with the latest in engine control and efficiency, to create an engine that would provide an 11–12% increase in power, while being over 21% more fuel efficient. It would continue the heritage of an eight-engined aircraft, as its size, weight and thrust-class are very similar to the existing B-52’s engines. Nonetheless, take-off thrust could increase up to 152,000 - 160,000 lbf, while the ferry range would increase by about 20% to over 10,514nmi (19,473 km / 12,100 mi). More importantly, the parts are widely available and will be for years to come, at low commercial prices, all while maintenance would be significantly reduced, decreasing maintenance costs and decreasing the number of man-hours needed on the ground for maintenance while increasing aircraft availability, and reliability. However, GE ALSO announced a second offering, a variant of the venerable CF34. While an older engine, it’s still relatively new compared to the B-52’s current engines. In addition, newer variants have since been released with incremental improvements, with wide adoption and proven history of reliability — albeit with some hiccups occurring during the initial deployment of some iterations — it has since proved to be very reliable engine, logging millions of flight hours on aircraft like the popular CRJ-100 through CRJ-1000 family of aircraft and E175/E190/E195 family of aircraft. This offering, while losing some of the fuel efficiency, has been known for its high adaptability and scalability, potentially saving several millions in the re-engining process. Additionally, with a wide spare parts and service base worldwide, service, maintenance and long term access to affordable parts is almost a guarantee. However, with this slight trade off in fuel efficiency comes back in the form of weight savings, which in turn can translate into fuel efficiency. The CF34 is by far the lightest option of the four engine types offered. While it’s not exactly enough to be on par with the newer engines, it does help its cause considerably. Pratt & Whitney Canada’s PW800, is also being offered as an option, with an identical market position as the GE Passport, it offers a similar thrust class and similarly excellent boosts in fuel economy and reduced maintenance. A version with between 17000 and 18500 lbf would fit the size and weight requirements perfectly, while vastly extending the range and endurance of the B-52. The numbers are very similar to the GE Passport, albeit with slightly less power at take-off, cruise speeds and effective range increases would remain largely the same as the Passport 20, with fuel burn on the PW800 even potentially being marginally lower at altitude/cruise. Rolls Royce has announced its contender engine, which is a variant of the BR725. While I am less familiar with this bid, I know it offers very similar performance numbers to GE’s CF34 offering, albeit slightly more fuel efficient, putting it as the 3rd most fuel efficient engine of the 4 offered. To close, here are a few funky images of B-52 test aircraft with various engine configurations. ^ Boeing 747 Engine tests.
Is cruise control on a car good? I heard it is fuel efficient and convenient, but it's easy to lose control because the driver falls asleep easier.
Cruise control and now adaptive cruise control is wonderful to have. I think driving has become safer because of it. Are there also some dangers because of it? Sure, but overall driving has become safer.
If you could piece together a car from components taken from other cars, what would your choices be? (Engine, transmission, seats, MMI system etc.)
One of my dream cars is the Citroen DS This car lacks a decent engine, because Citroen changed the path of engine layout development several times. So, as disruptive this car was when it was introduced in 1955, its engine was outdated. So I would love to fit a Citroen DS with the power train of a Toyota Prius III. It is strong enough for the car, runs smoothly and fuel efficient and offers a seamless transmission. I would replace the cockpit of the DS with a fullscreen display as used by Mercedes, and I would also try to adopt several drive assist systems such as adaptive cruise control. The seats of the car need some replacement, I would consider taking seats from a late Saab or something like that, they are very comfortable. The Citroen DS featured an unique hydraulic suspension system called Hydropneumatic. This system was pressurized by a hydraulic pump powered by the engine. As soon as the engine stops, the car begins to sink down slowly. It took Citroen almost 50 years to fix this problem. The Citroen C5 had a Hydropneumatic suspension with an electric pump which would level out the car as soon as you open the door. I would try to retrofit the DS system with C5 parts. And I would install ABS brakes, either from the donor Prius or from the donor C5. The result: A Citroen DS which is made that way it meant to be in the beginning.
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