DD15 Operator Guide – DDEC VI Features

DDEC VI Features

DDEC VI offers a variety of features and options designed to warn the operator of an engine malfunction.‪

Options can range from warning panel lights to automatic reduction in engine power followed by automatic engine shutdown. ‪

DDEC VI has the ability to perform diagnostics for self-checks and continuous monitoring of other system components.
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Depending on the application, DDEC VI can monitor oil temperature, coolant temperature, oil pressure, fuel pressure, coolant level and remote sensors (if used).‪

DDEC VI activates to the Amber Warning Lamp (AWL)/Check Engine and the Red Stop Lamp (RSL)/Stop Engine to provide a visual warning of a system malfunction.‪

Cruise Control

Cruise Control is available with any DDEC engine. Cruise Control will operate in either Engine or Vehicle Speed Mode and maintain a targeted speed (MPH or RPM) by increasing or decreasing fueling. The targeted speed can be selected and adjusted with dash-mounted switches. ‪

Cruise Control may also be programmed to permit fast idle using the Cruise Control switches.
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With the engine at normal idle, transmission in neutral and service brakes on, press the SPD CNTL Switch, and use the RSM/ACC Switch. The engine rpm should increase to a predefined speed. The engine rpm can be raised or lowered from this point using the SET/CST and RSM/ACC switches.‪

Cruise Control will maintain the set speed under normal road and load conditions.
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LOSS OF VEHICLE CONTROL ‪
To avoid injury from the loss of vehicle control, do not use cruise control under these conditions:‪ When it is not possible to keep the vehicle at a constant speed (on winding roads, in heavy traffic, in traffic that varies in speed, etc.). On slippery roads (wet pavement, ice-or snow-covered roads, loose gravel, etc.).

NOTICE:
When descending a hill with Cruise Control OFF, do not allow the engine to exceed 2300 rpm. Failure to observe this can result in over speeding and serious engine damage.‪

Engine speed and power are varied under Cruise Control to maintain the set vehicle speed. The vehicle speed must be above Min Cruise Set Speed and below Max Cruise Set Speed. It is recommended that Max Cruise Set Speed be set to the default to allow proper operation of other features such as Fuel Economy Incentive and PasSmart. The Vehicle Speed Limit should be used to limit vehicle throttle speed.‪

It cannot limit vehicle speeds on down grades if available engine braking effort is exceeded, nor can it maintain speed on upgrades if power requirements exceed engine power capability.‪

When the SPD CNTL is in the ON position, Cruise Control is engaged by momentarily contacting the SET/CST Switch. As a check after each engine start, DDEC VI looks for a one time activation of the clutch (if equipped) and service brake before DDEC VI allows Cruise Control to be enabled. The MCM must also recognize that the Cruise Enable Switch has changed. If the Cruise Enable Switch is off, it needs to be turned on. If the Cruise Enable Switch is on, it must be turned off then on for cruise to operate.‪

Holding the switch in the SET/CST position allows the vehicle to slow to a lower speed. Toggling the switch will result in a one mile-per-hour (1.6 kph) decrease in vehicle speed. If Cruise Control has been disabled, toggling the RSM/ACC Switch restores the vehicle to the previously set cruise speed.‪

Cruise Control can be overridden at any time with the accelerator pedal if the vehicle is operating at less than the programmed Max Road Speed. Additionally, using either the brake or the clutch will disable Cruise Control.‪

Data Recording Capability

DDEC VI contains the ability to extract detailed data on the engine’s use and performance using DDEC Reports software. This data, known as DDEC Data, is stored in the CPC and contains information on engine performance (such as fuel economy, idle time, time in top gear) and critical incidents (such as detailed diagnostic data records and hard braking events). DDEC Data can be downloaded using DDEC Reports software to produce reports.‪

DDEC Reports software is part of the Detroit Diesel Diagnostic Link® 7.0 (DDDL 7.0) software package. DDDL 7.0 requirements are listed in Table
“DDDL 7.0 System Requirements”

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Minimum Hardware‪	Recommended Hardware‪
Windows 2000 or Windows XP‪	Windows 2000 or Windows XP‪
Pentium 3 Processor, 400 MHz‪	Pentium 4, 1.5 GHz‪
256 MB RAM‪	512 MB RAM‪
10 Gigabyte Hard drive with 1 Gigabyte free‪	40 Gigabyte Hard Drive with 5 Gigabytes free‪
8 x CD ROM Drive‪	32 x CD/DVD ROM‪
Monitor and graphics card supporting 1024 x 768 resolution and 16 bit color‪	Monitor and graphics card supporting 1280 x 1024 resolution and 32 bit color‪
Parallel port, 1 free USB port‪	Parallel port or 3 free USB ports‪
Internet or Mainframe Connection to DDC Server (for updates)‪	Internet or Mainframe Connection to DDC Server (for updates)‪
Translator Boxes (Detroit Diesel Multilink, Nexiq Magic Key, Nexiq USB-Link)‪	Translator Box (Nexiq USB-Link)‪

Engine Brake

The engine brake is enabled by a dash-mounted ON/OFF Switch with a separate intensity switch to select low, medium, or high braking power.‪

LOSS OF VEHICLE CONTROL ‪

To avoid injury from loss of vehicle control, do not activate the Engine Brake system under the following conditions:‪ On wet or slippery pavement, unless the vehicle is equipped with ABS (anti-lock braking system) and you have had prior experience driving under these conditions. When driving without a trailer (bobtailing) or pulling an empty trailer. If the tractor drive wheels begin to lock or there is fishtail motion after the Engine Brake is activated, deactivate the brake system immediately if this occurs.

The engine brake will only operate when the Accelerator Pedal is fully released. Disengaging the clutch will prevent the engine brake from operating.‪

The engine brake will supply braking power even when in Cruise Control. The MCM will control the amount of engine braking with respect to the Cruise Control set speed. The maximum amount of braking (low, medium, high) is selected with the dash switches.‪

Engine Protection

The DDEC VI engine protection system monitors all engine sensors and electronic components, and recognizes system malfunctions. If a critical fault is detected, the AWL (Check Engine) and RSL (Stop Engine) illuminate. The malfunction codes are logged into the MCM’s memory.‪

The standard parameters which are monitored for engine protection are: low coolant level, high coolant temperature, low oil pressure, and high oil temperature.‪

This system features a 30–second, stepped-power shutdown sequence or an immediate speed reduction without shutdown in the event a major engine malfunction occurs, such as low oil pressure, high oil or coolant temperature, or low coolant level.‪

PERSONAL INJURY ‪
To avoid injury from engine shutdown in an unsafe situation, ensure the operator knows how to override the stop engine condition on a DDEC-equipped unit.‪

NOTICE:
Engines equipped with the powerdown/shutdown option have a system override button or switch to allow engine operation for a short period of time. Using the override button so the engine does not shut down in 30 seconds but operates for an extended period may result in engine damage.‪

California Engine Idle Limiting

In order to meet the California Engine Idle Limiting Standard, an engine idle shutdown feature has been built into the DDEC VI Engine Control Strategy. When the California Engine Idle Limiting feature is enabled, the engine will generally shut down after five minutes of continuous idling when the transmission is in neutral or park and the parking brake is set or after fifteen minutes when the transmission is in neutral or park and the parking brake is not set.‪

Activating or momentarily changing the position of the service brake pedal, the clutch pedal, Stop Engine Override, the accelerator pedal, or park brake status during the final 30 seconds before a shutdown would otherwise occur will prevent the engine from shutting down and will reset the shutdown timer. After an automatic shutdown, the engine may be restarted and operated normally.‪

The automatic shutdown feature is generally disabled on engines certified by the US EPA for use outside California but is required to be enabled for all California certified engines with the exception of engines used in specific vehicle types which the state of California has determined to be exempt from the idle shutdown requirement. These include buses, school buses, recreational vehicles, medium duty vehicles, military tactical vehicles, and authorized emergency vehicles as they are defined by the state of California. Owners of these vehicle types that wish to have the shutdown feature disabled should consult with California authorities to determine if their vehicles qualify for the exemption.‪

Idle Shutdown Timer

This feature is an optional 1 – 100 minute idle shutdown system.
Its purpose is to conserve fuel by eliminating excessive idling and allowing a turbocharger cool-down period. To activate the shutdown, the transmission must be in neutral with the vehicle parking brakes set and the engine in idle or fast-idle mode.‪