4WD – BPA-4R HP Linked
HP series is Bapro’s highest performance chassis dynamometer. Four all connected 400 mm diameter rollers per each axle guarantee the top repeatability and accuracy. With a massive tubular frame made of high strength steel, this High Performance series suits all needs: Testing, R&D, Motorsport, Tuning and Chip Tuning. BPA-4R High Performance is suitable for any kind of power and torque levels. Axles rigid connection: realized through bevel gearboxes and cardan shaft. The front-rear connection system can be completely deactivated with a button on the remote control. The disengagement disconnects both transmissions, then the cardan shaft stops completely (i.e. the linked dyno transforms into synchronized dyno Bapro BPA-4R HP so no parts are rotating when it is not needed).
✔️ Used by electric vehicles’ manufacturers.
Description
Mechanical features:
- Roller diameter: 400 mm
- Roller width: 700 mm
- Balance quality grade G 2.5
- All the mechanics is laser aligned
- Overall dimensions mm: 4360 x 3470 x 460, exactly the same as the model BPA-4R HP
- Max weight per axle: 2.500 kg
- Direct mechanical link between the front and rear axles, which can be totally disabled by software
- Oversized connection components to guarantee a long life over time
Performances:
- Maximum speed with link activated 250 km/h
- Maximum speed with link disabled 360 km/h
- Maximum adsorbable power 1.300 HP (Endurance tests)
- Maximum measurable power 2.000 HP (Sweep power tests)
- Maximum traction force 16.000 N
Power supply:
- voltage 3/N/PE 400 VAC
- frequency 50 Hz
- fuses 16 A
- compressed air 6 bar
Advantages:
- Shorter repair time (fast and exact diagnosis)
- effective use of the instruments already present in workshop (diagnosis equipment, gas analyzer)
- Avoid any risks from road tests (traffic, accidents, fines)
- Results certification (performance enhancement)
- Accessories sale improvement by result verification (exhaust systems, efi controller etc..)
- Second-hand vehicles sale improvement by engine health certification
- Vehicle check before second-hand trades
- Renting for tests and technical checks
Measuring program:
- Transmission verification (clutch slippage)
- Power step test
- Power sweep test
- Cooling system check (radiator, fan sensor, thermostatic valve)
- Diagnosis by gas analyzer under load
- Vehicle test with constant speed
- Vehicle test with constant force
- Vehicle test with constant load
- Road simulation (slope, drag resistance, weight)
- Vehicle test with constant RPM
- Durability tests
- Engine mapping to all RPM
- Diagnosis by scantool during road simulation
Standard features
- 2 Eddy currents brakes; 8 rollers paired with HTD belts, knurled over entire width, finished by cut knurling
- 2 bevel gearboxes
- 1 cardan shaft with extension for adaptation to the wheelbase of the vehicle
- Infrared remote control test bench management directly from vehicle cockpit
- Lambda Input to connect the vehicle lambda probe or an external controller
- Boost pressure input 0÷2.5 bar relative pressure ± 0.035 bar error
- Fully functional management software; Pneumatic vehicle lifter, with integrated rollers lock
- Electric adjustment of vehicle wheelbase
Optional features
- Double ventilation system movable on wheels, target power 6 kW, flow rate 44.000 m3/h
- Single ventilation system movable on wheels, target power 3 kW, flow rate 22.000 m3/h
- Lambda kit: 5 wires wide band Lambda probe and controller
- High width aluminum loading ramps. Needed when the dyno is installed on ground
- Computer trolley built by heavy duty lasting steel, Pro: heavy duty, movable, wide working surface
- Proportional ventilation speed control adjusting the fan speed in function of the rollers speed
- Roller covers protect the rollers when the dynamometer is not working
- Personal computer and display
- Safety Equipments: Side safety barriers with logo panels, Anchoring ratchet straps, High attenuation ear muff
- OBDII parameters reading and dtcs deleting without the need for additional hardware and dedicated interfaces.
Comparative table
| BPA-2R HP | BPA-4R HP | BPT-2R | BPA-2R S | BPA-4R S | |||
| Performance | |||||||
| Maximum speed | 360 km/h | 360 km/h | 200 km/h | 250 km/h | 250 km/h | ||
| Maximum adsorbable power | 650 HP | 1300 HP | 400 HP | – | – | ||
| Maximum measurable power | 1000 HP | 2000 HP | 900 HP | 400 HP | 800 HP | ||
| Maximum traction force | 8000 N | 16000 N | 16000 N | – | – | ||
| Mechanical features | |||||||
| Rollers diameter | 400 mm | 400 mm | 400 mm | 240 mm | 240 mm | ||
| Rollers width | 700 mm | 700 mm | 700 mm | 660 mm | 660 mm | ||
| Roller balancing grade | G 2.5 | G 2.5 | G 2.5 | G 2.5 | G 2.5 | ||
| Equivalent base inertia | 450 Kg | 900 Kg | 550 Kg | 240 Kg | 480 Kg | ||
| Dimensions | 3470×1135 mm | 4360×3470 mm | 3470×5300 mm | 3070×870×310 mm | 4160×3130 mm | ||
| Deck height | 410 mm | 460 mm | 640 mm | 360 mm | 360 mm | ||
| Weight | 2500 kg | 2500 kg | – | 2000 kg | 2000 kg | ||
| Voltage | 400 V 50 Hz 3/N/PE | 400 V 50 Hz 3/N/PE | 400 V 50 Hz 3/N/PE | 220 V 50 Hz 1/N/PE | 220 V 50 Hz 1/N/PE | ||
Configurations
