The development of the new Dymanic Power engine control system for the Jaguar 980 and Jaguar 970 is a result of the move to these models being powered by just a single engine – instead of the previous two – in order to comply with the latest emissions regulations.
One of the big advantages of the twin-engine system on these two Jaguar models was the ability to run on just one engine for road transport or in light crops to save fuel, and only engage the second engine when full power was required.
The new Dymanic Power engine control system has been designed to take this benefit a stage further by allowing a single engine to operate at 11 different power outputs, so enabling even greater efficiencies while still maintaining maximum output from the forage harvester.
When combined with the GPS steering, automatic spout control and cruise-control systems that are also available for Jaguar forage harvesters, this not only reduces that operational stress imposed on the operator, but ensures that the whole harvesting team can maintain optimum output efficiency.
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| Claas’ latest Jaguar 970 features just one engine, but with 11 different power settings to match every eventuality. |
Instead of the twin engines previously used on these two models, the range topping Jaguar 980 is now powered by a single MAN V12, while the Jaguar 970 utilises a MAN V8, both of which achieve optimum engine load at 1,800rpm.
Using Dymanic Power, as the load on the engine varies, for instance when working in lighter crops or in lower-yielding parts of a field and on the road, the control system automatically recognises this and will alter the engine power output accordingly over 10 power steps.
On the Jaguar 980, the power output ranges from 272hp up to the maximum of 884hp, while on the Jaguar 970 the steps range from 272-775hp.
| Claas Dymanic Power steps | |||||||||||
| Min | 1 | 2 | 3 | 4 | 5 | 6 |
7 | 8 | 9 | 10 | |
| Jaguar 980 | 272 | 333 |
394 | 456 | 517 | 578 | 639 | 700 |
762 |
823 | 884 |
| Jaguar 970 | 272 | 322 | 376 | 423 | 473 | 524 |
574 |
624 |
674 |
725 | 775 |
By being able to automatically change power output as the load on the engine changes, this ensures that the engine can maintain its optimum engine load of 1,800rpm, when it will be at its most economical, so saving a considerable amount of fuel.
In addition to the 12-volt electrical system used on the main electrical circuits, both the Jaguar 980 and 970 now also include a 24-volt system used for starting the engine.
For cooling, both Jaguars are fitted with two large radiators, one above the other, for even cooling of the hydraulic, charge air and coolant systems. The radiators are cleaned by a rotary screen and for additional cooling around the engine, a cover in the top of the engine bay automatically opens when the forager is running.
In 1999, Claas led the way in on-board milling of the forage crop with the development of the Corn Cracker and today this Claas development is seen as essential when harvesting maize and other crops such as wholecrop. For 2012 Claas has developed a new larger diameter multi-crop cracker that is designed to comfortably handle the high throughputs that can be achieved with top-of-the-range Jaguar 980 and 970 forager harvesters.
Compared to current corn crackers, in order to handle higher throughputs the new multi-crop cracker features a more rugged design, with twin bearings throughout and double springs on the front roller. In addition, the design allows the rollers to be quickly and easily changed, for instance to those with a different profile for more aggressive cracking or harvesting wholecrop.
For more information visit: www.claas.co.uk.
