The I-Shift family of Volvo Trucks is about to introduce a new product: I-Shift with crawler. The new crawler block is located in the automatic transmission, allowing the truck to start heavy-duty in harsh conditions while achieving excellent stability.
New I-Shift adds 2 crawler gears due to the addition of 2 additional gears
Only mass-produced heavy trucks are equipped with this system. For China's large-scale transport market, this will be a great good news, making large-scale transport work more light, more flexible and precise control, while further improving the fuel economy.
The new I-Shift from Volvo Trucks can add up to two crawlers. This means that, among other features, the truck can also be started from a standstill with a gross vehicle weight (GCW) of up to 325 tons.
With the new crawler, the truck can reach a minimum speed of 0.5-2 km/h.
"I-Shift with crawler can provide brand-new features for heavy-duty trucks equipped with automatic gearboxes, supporting vehicle speed regulation as the vehicle crawls slowly and reversing. The transmission gear can withstand heavy loads, so you don't have to worry about getting stuck, and then It can cause the vehicle to break down and costly,†said Peter Hardin, product manager for FM and FMX.
With the new crawler, the truck can reach a minimum speed of 0.5-2 km/h. This helps the truck to achieve precise control when performing tasks such as construction and maintenance.
“The new crawler dramatically improves drivability and starting performance, making it easier for the driver to work even if he encounters rough terrain (such as construction sites, mines or forests) when transporting heavy loads and the road is smooth. The worse the road or terrain, the better the driver can benefit from a truck with a crawler,†explains Peter Hardin.
Volvo Trucks Launches Gearbox With Crawler Shift
For haulage companies that need to perform heavy-duty transportation on demanding roads as well as on regular highways, crawlers provide excellent flexibility and increase fuel economy.
"The I-Shift with crawler can be started from standstill in extreme situations. The appropriate rear axle ratio optimizes the engine speed at high speeds, so it is properly paired with the crawler to reduce the vehicle's speed on the highway. On the fuel consumption. This is a great advantage for haulage companies that perform such operations,†said Peter Hardin.
Depending on the application, the I-Shift can be equipped with one or two forward crawlers or two reverse crawlers. The reverse crawler allows the driver to reverse the vehicle extremely slowly, and the reverse operation requires great precision, so this is a big advantage.
The demanding requirements of large-scale shipments are very much in line with the conditions of use of the I-Shift gearbox equipped with crawler gear: heavy-load start-up and poor road conditions. For large-scale transportation, the I-Shift gearbox with crawler will greatly relieve the fatigue of the driver, make driving more accurate, and reduce the huge loss of the vehicle in poor road conditions may be due to anchoring; Volvo's The crawler gearbox has the function of fuel saving at the same time, improves fuel economy under the conditions of ensuring large-scale transportation work, continues to deliver the goal of bringing high efficiency to customers, and continuously improves the fuel of Volvo Trucks in various sub-sectors. Performance, maintain the leading position of heavy-duty trucks with high efficiency and fuel economy. Perhaps, in the near future, Volvo large-sized transport trucks equipped with this function will also come to Chinese users.
You can watch Volvo Truck Crawler I-Shift Transmission on Volvo Truck's Youku video channel (http://v.youku.com/v_show/id_XMTUwMDQ3NzExMg==.html) and Volvo Truck Crawler I-Shift Gearbox Animated demo (http://v.youku.com/v_show/id_XMTUwMDQ3NjM2NA==.html).
Introduction — I-Shift with crawler
· I-Shift with crawler is an improved version of the Volvo Truck I-Shift automatic transmission.
· The new I-Shift has been specially developed to achieve excellent starting performance and extremely low specific driving speeds.
I-Shift with crawler
· I-Shift with crawler allows to run at a minimum speed of 0.5-2 km/h and can start from standstill with a gross vehicle weight of up to 325 tons, but only the mass-produced truck with an automatic transmission With this feature.
· There are two gearboxes: direct gearboxes or overdrive gearboxes that provide one or two crawler gear ratios. In addition, two reverse crawler gear ratios can also be specified.
· The low speed crawler is integrated in the I-Shift gearbox. In order to carry the high loads involved, multiple components are made of high-strength materials. The gearbox is 12 cm longer than the conventional I-Shift device. The I-Shift with crawler is suitable for Volvo Truck 13- and 16-liter engines in the Volvo FM, Volvo FMX, Volvo FH and Volvo FH16 series.
Transmission ratio - I-Shift with crawler
· In gearboxes equipped with a crawler gear, the transmission ratio of the direct gearbox is 19:1, and the gearbox ratio of the overdrive gearbox is 17:1 (the ratio of the gear ratio of the lowest gear of the conventional I-Shift direct gearbox) 15:1). In a direct gear or overdrive transmission with two crawling gears, the lowest gear ratio is 32:1.
· In the direct gearbox, the gear ratio of the lowest reverse gear is 37:1.
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