Vehicle Power and Battery Monitoring Systems

The Ultra Electronics battery monitoring system (BMS) has been specifically designed for use on military vehicles. Based on patented technology that incorporates a real-time complex algorithm, the BMS simultaneously measures conductance, voltage, current, temperature and time to provide a highly reliable and accurate measurement of the state of health of a vehicle's batteries. The BMS provides the vehicle crew with accurate real-time battery health data. Technological advances in electronic equipment installed in modern military vehicles have led to increased demand on the vehicle battery bank. Historically, little or no attention has been paid to the condition of the batteries until a failure occurs.

A sensor unit mounts directly to the lower negative battery terminal. An LED indicator on top of the sensor indicates the state of function. Each sensor outputs data via a control unit onto CAN bus so that information can be displayed either on existing vehicle displays or on a standard battery monitoring display. The display presents critical data such as:

  • Time remaining
  • State of charge
  • State of health

Additionally, the user can view a diagnostics screen to gain access to more detailed battery performance and power generation information.

Conductance based solution: 
Conductance measurement has become established in the automotive and standby power industry as the only reliable method for quantifying the heath of a lead acid battery. The BMS combines conductance measurement with voltage, current, temperature and time to provide accurate state of health and state of charge for each battery in the vehicle.

   

Benefits:

  • Power consumption monitoring - provides accurate time remaining measurements for silent watch applications
  • Critical power threshold - crew alerts can be developed per customer requirements
  • Reduced life cycle cost - identifies faulty batteries so that only the defective batteries are replaced

Features

  • One sensor per pair of 12V batteries
  • Measures voltage, current, temperature and conductance of each battery
  • Reports
    •  time remaining
    • state of charge
    • state of heal
  • CAN interface - J1939 compatible
  • Scalable system for up to eight battery pairs

Vehicle Battery Monitoring capabilities & products

Mk2
Mk2 Image

Battery monitoring system Mk2

Ultra's battery monitoring system provides the vehicle crew with accurate real-time battery health data. The Mk2 has been selected for installation on multiple US MRAP variants to monitor the C4ISR batteries. Production orders began in 2010. The Mk2 is also undergoing trials for use on the MATV program.


Specification

Dimensions: sensor: 81 x 64 x 25 mm, control unit: 146 x 160 x 29 mm

Weight: sensor: 0.5kg, control unit: 0.4kg, display: 1.5kg

Input voltage: sensor: +14V to +32V

Current draw: sensor: 210mA (active mode) 70mA (sleep mode)

Battery types: 2 x 12V lead acid in series (flooded or gel)

Operating temperature: -40ºC to +71ºC 
(MIL-STD 810E)

Downloads 

Mk3
Mk3 Image

Battery monitoring system Mk3

The Mk3 battery monitoring system, based on the Mk2 system, is an enhanced version developed to meet the performance specification written by PEO Ground Combat Systems. The system has undergone extensive performance testing both at Ultra Electronics, EMS and by third parties. The system offers the user the option of specifying between one and three control boards per housing providing the flexibility to mount controllers throughout the vehicle or to minimize the space claim. The sensor battery post can be reconfigured to accommodate space constraints in the battery compartment.

 


 

Specifications
Dimensions: sensor: 81 x 64 x 25 mm, control unit: 84 x 58 x 29 mm

Weight: sensor: 0.5kg, control unit: 0.4kg

Input voltage: sensor: +14V to +32V, display: 28V to MIL-STD-1275

Current draw: sensor: 100mA (active mode) 30mA (sleep mode)

Battery types: 2 x 12V lead acid in series (flooded or gel) 

Operating temperature: -40ºC to +71ºC
(MIL-STD 810E) 

 

 

Downloads