C/M EESM Cooling Systems. Compare

 

C/M EESM Cooling Systems. Compare

NON-COOLANT SYSTEM - LOW MAINTENANCE

5-15 year replacement for Cold-Air aspects 

Use of Climate Control not Digital Festures then the spin-force of the EESM motors with a sound based effect based on speed + force 

Mandatory & Standard Issue 

Sensors & Control: The system uses sensors to monitor temperatures and directs cooling flow to prioritize battery & motor health and passenger comfort. 

Heat Pump System: Integrated heat pumps improve efficiency, especially in cold weather, by intelligently managing heat for both battery and cabin.

Battery & Motor Cooling: A large cooling plate runs beneath the battery modules, circulating coolant to maintain ideal temperatures for performance and longevity.

Systems with just a recharger & no battery focus on recharger & motor

BMW BEVARIAN MOTOR WORKS i4

A different approach in EESM Motors yet similar 

The BMW i4's cooling system is a sophisticated liquid-cooled setup crucial for its battery and electric motors, featuring dedicated circuits, large cooling plates under the battery modules for heat transfer, integrated heat pumps for efficiency, and multiple expansion tanks (high/low temp) for optimal thermal management, managing everything from battery charging to cabin comfort, using specific coolants and requiring professional diagnosis for any low levels rather than simple topping off. 

Key Components & Features:

• Battery Cooling: A large cooling plate runs beneath the battery modules, circulating coolant to maintain ideal temperatures for performance and longevity.

• Multiple Circuits: It often uses separate circuits for the battery/drive components (high-temp) and the low-temperature system (like the heat pump).

• Heat Pump System: Integrated heat pumps improve efficiency, especially in cold weather, by intelligently managing heat for both battery and cabin.

• Expansion Tanks: Two tanks (high and low temp) with built-in filters manage coolant levels and pressure, with specific caps for each circuit.

• Sensors & Control: The system uses sensors to monitor temperatures and directs coolant flow to prioritize battery health and passenger comfort. 

Important Considerations:

• Do Not Top Off: If you see a low coolant warning (or suspect a leak), do not add fluid yourself; it's a closed system, and adding the wrong coolant or fluid can damage components, especially the battery.

• Professional Service: Low coolant indicates a leak that needs professional diagnosis and repair to prevent serious issues like battery overheating or drivetrain failure.

• Specialized Coolant: Use only the specific G40 pink coolant (or equivalent approved by BMW) and never mix different types. 

In essence, the BMW i4's cooling is a complex thermal management system designed to keep all electric components at their optimal operating temperature, demanding expert attention if issues arise, as noted by instances of overheating linked to minor leaks. 

EV MOTOR AIR CONDITIONING 

EV car coolant systems manage both the battery and cabin climate, using refrigerant for the AC and a separate liquid coolant (glycol/water mix) for the battery, often integrated via a heat pump/thermal system that efficiently heats/cools the cabin and keeps batteries in their optimal 59-86°F range, using an electric compressor powered by the battery for cooling and managing overall efficiency. 

EV car air conditioning uses an electric compressor powered by the main battery, allowing it to work even when the car is off, unlike gas cars where it's engine-belt driven, but it does draw from the same battery, impacting range. Modern systems often feature efficient heat pumps for heating/cooling and smart features like pre-cooling to manage battery energy, but running the AC still uses significant power, especially in extreme temperatures, so managing settings and preconditioning while plugged in helps preserve range. 

Key Differences & How It Works

• Power Source: The main difference is the compressor is electric, powered directly from the high-voltage battery, not the engine.

• Operation: The core process (compressor, condenser, evaporator) is similar to traditional cars, but the electric motor allows for precise control and operation without the engine running, offering full power at stops.

• Efficiency: Electric compressors are more efficient and can run independently, but they draw significant energy from the battery, which reduces driving range, particularly in hot or cold conditions. 

Managing Range & Efficiency

• Preconditioning: Use the app to cool or heat the cabin while the car is still plugged in to use grid power instead of battery power.

• Smart Settings: Utilize features like "Eco" modes or variable-speed compressors for more efficient operation.

• Parking: Parking in the shade helps keep the cabin cooler initially, reducing the AC's workload.

• Battery Charge: Keep your battery charged to 80% for optimal health and range, as very high resistance at full charge can strain the system in heat, says a U.S. News article. 

Heating in EVs (Heat Pumps)

• Many EVs use heat pumps, similar to home units, that can both heat and cool efficiently by moving heat rather than generating it, making them much better for winter range than older resistive heaters. 

EV COOLANT USE 

EV car coolant systems manage both the battery and cabin climate, using refrigerant for the AC and a separate liquid coolant (glycol/water mix) for the battery, often integrated via a heat pump/thermal system that efficiently heats/cools the cabin and keeps batteries in their optimal 59-86°F range, using an electric compressor powered by the battery for cooling and managing overall efficiency. 

How it Works

• Electric Compressor: Powers the AC using battery power, unlike gas cars where the engine drives it.

• Refrigerant System: Circulates refrigerant for cabin cooling (like traditional AC).

• Battery Thermal Management: A liquid coolant loop (similar to ICE cars) circulates water/glycol to keep the high-voltage battery pack within optimal temperature ranges (around 59-86°F) for performance and safety.

• Integrated System (Heat Pump): Modern EVs often use a heat pump that acts as both heater and AC, efficiently moving heat in or out of the cabin and battery pack, using the same system.

• Power Source: The entire system runs off the main high-voltage battery, making AC use a factor in range, though optimized for efficiency. 

Key Differences from Gas Cars

• Power: Battery-powered compressor vs. engine-driven.

• Efficiency: More efficient, can run AC while parked (engine off).

• Integration: AC, heating, and battery cooling are often linked for maximum efficiency. 

Maintenance

• Regular checks for leaks in hoses and components.

• Follow manufacturer guidelines for flushing and replacing the liquid coolant.

• Keep the radiator fins clean for good airflow. 

EV VEHICLE COOLANT REPLACEMENT 

Electric vehicle (EV) coolant and air conditioning (A/C) maintenance requirements vary by manufacturer, but generally, battery coolant lasts for 5–15 years, while A/C desiccant bags require replacement every 4–7 years. Unlike internal combustion engines, EV coolant is primarily for thermal management of the battery and power electronics, not for an engine block. 

EV Battery Coolant Replacement Schedule

• Tesla: "Lifetime" coolant that generally does not need replacement, though some sources suggest checking every 4 years.

• Chevrolet Bolt EV: Every 150,000 miles (240,000 km) or 5 years.

• Hyundai/Kia: Generally 100,000–120,000 miles (120,000–160,000 km) or 10 years.

• General Recommendation: Every 100,000 to 150,000 miles (160,000 to 240,000 km).

• Inspection: It is recommended to check levels every 30,000 miles (48,000 km) or 6 months. 

EV Air Conditioning (HVAC) Maintenance

• A/C Desiccant Bag: Should be replaced every 4 to 7 years to prevent moisture buildup and mildew.

• Cabin Air Filter: Every 2 years or 36,000 km (22,500 miles).

• System Re-gassing: If the air conditioner is blowing warm air, it may need to be re-gassed, typically every 1-2 years. 

Other Essential Fluids and Maintenance

• Brake Fluid: Every 2-3 years, as it absorbs water over time.

• Drive Unit Fluid: Some models require replacement at 100,000 miles.

• Underbody Maintenance: Cleaning corrosive materials (like road salt) from the underbody in spring and fall. 
Note: Always consult your specific owner's manual for the most accurate schedule for your vehicle.

HEAT SINK 

The "heat-sink" effect in Motor cooling design at C/M for automotive & connected efforts voids unreliability 

Cutting out anything not required. Simply. It works or it does & yet... is not really required or designed to downgrade in tiers for part profits rather than A - B replacement 

C/M. No bullsh*t race spec attitude. Legal disclosure & real testing Prototypes 

SETTLEMENT - H.I.3 SCHEME FOR S.B.G

US 3 Trillion is semi-devided into S.B.G - CIG + C/M - Alpha & Shield while a percentage goes to Dr Sydney Nicola Bennett & Dr Carly Koslov Bennett majority shareholders or S.B.G despite a separate Commodities Haul matching lifting S.B.G up over $14 Trillion with minorities connected to now over $33 Trillion for January 1, 2026

S.B.G - CIG + C/M