The power of the Li Auto L7 power plant consists of the combined output of two electric motors, which in top versions reaches 330 kW, providing acceleration to 100 km/h in 5.3 seconds. This model belongs to the class EREV (Extended Range Electric Vehicle), has no direct mechanical connection between the internal combustion engine and the wheels, which makes the concept of “engine power” here conditional, since the internal combustion engine operates exclusively as a generator of electricity. The 1.5-liter petrol unit develops 113 kW (154 hp) and serves to recharge the traction battery or directly transfer energy to the electric motors, but is not directly involved in creating traction on the wheels.
Owners and potential buyers often confuse the rated power of a generator set with the actual vehicle dynamics, which is entirely dependent on the capacity Li Auto L7 battery and peak performance of electric motors. The maximum torque of the system is an impressive 620 Nm, which is available almost from the first revolutions, providing instant response to the accelerator pedal. It is important to understand that in Smart Mode The car itself distributes energy, using the internal combustion engine as efficiently as possible to maintain battery charge, allowing the electric motors to produce their maximum power of 449 horsepower.
Energy efficiency and dynamics Li L7 directly depend on the state of charge of the high-voltage battery, which in the Max version has a capacity of 42.8 kWh. With a fully charged battery, the car behaves like a full-fledged electric car, using all the available power of the electric motors without the participation of the internal combustion engine. However, when the charge level is low, the gasoline generator turns on, which, despite its modest 154 hp, is capable of providing energy to the motors to maintain high cruising speed, although acceleration dynamics in this mode can be limited electronically to prevent deep discharge.
EREV hybrid system design
Powerplant Li Auto L7 built according to a series hybrid scheme, where the internal combustion engine 1.5 Turbo deprived of mechanical connection with the transmission. This means that the internal combustion engine always operates in the optimal speed range, either charging the battery or powering the electric motors directly, which eliminates inefficient idling or sudden load surges. This architecture allows the use of a relatively small in volume and power gasoline engine to serve the needs of a large five-seater crossover.
The electrical part is represented by two motors: front and rear, which together provide all-wheel drive. The rear electric motor usually has more power and is responsible for the main traction, while the front one is activated when increased dynamics are needed or when traction deteriorates. Control system Li Auto intelligently balances energy flows, providing the smooth ride characteristic of electric vehicles, but with the absence of “_range anxiety_” (fear of discharge), since the internal combustion engine acts as a mobile generator.
⚠️ Attention: Despite the presence of an internal combustion engine, maintenance requires monitoring not only the oil level in the engine, but also the condition of the cooling system of the high-voltage battery and inverters, since the thermal loads in the hybrid system are significant.
The key advantage of this scheme is the ability to use internal combustion engines as range extender (range extender), which can run on fuel of any quality that complies with the Euro VI standard, although the manufacturer recommends the use of gasoline with an octane rating of at least 95. This allows the car to maintain high dynamics even in regions with an underdeveloped charging station infrastructure, where all-electric analogues would be useless.
Specifications and overclocking options
Dynamic indicators Li L7 vary depending on the modification and battery charge state, but even in basic versions the car demonstrates impressive agility. The total power of the system in top trim levels allows it to compete with charged versions of German SUVs, while fuel consumption remains at the level of compact sedans thanks to the ability to drive on pure electric power.
- 🚀 Acceleration to 100 km/h takes only 5.3 seconds in maximum output mode, which is an excellent indicator for a full-size family crossover.
- ⚡ A torque of 620 Nm is available instantly, providing confident overtaking on the highway and a quick start from a traffic light without the delays typical of classic automatic machines.
- 🔋 The power reserve on pure electricity is up to 180 km on the CLTC cycle, which covers the needs of most daily trips without starting the internal combustion engine.
- ⛽ The total range with a full tank and charged batteries exceeds 1300 km, which makes the car ideal for long journeys.
The traction control system allows the driver to select different powertrain modes through a menu on the central screen or voice commands. In mode Electric Priority the car will tend to consume battery charge to a minimum, starting the internal combustion engine only when it is completely depleted, while the mode Hold causes the generator to maintain the current charge level by consuming fuel.
Operating modes and energy management
Energy flow management in Li Auto L7 implemented through an advanced software shell that analyzes the terrain, driving style and navigation data. If the navigator “sees” a hill or a speed-limited section ahead, the system can start the internal combustion engine in advance to save battery power for subsequent intense acceleration or driving in an emission-free zone.
The driver can manually adjust the operating parameters of the system by setting thresholds for turning on the generator. For example, you can set a condition under which the internal combustion engine will start working only when the battery charge drops below 50% or 70%. This is especially useful when planning a trip when you know there won't be any charging options at your destination and you need to get there using what's left of your electricity.
⚠️ Attention: When parking for a long time with the internal combustion engine running in generation mode, make sure that the car is in a well-ventilated area, as exhaust gases can be hazardous to health.
Energy recovery efficiency is also adjustable: Comfort, Standard and Maximum modes are available. In the latter case, when you release the accelerator pedal, the car intensively slows down, returning energy to the battery, which allows you to practically do without using brake pads in the urban cycle. However, it is worth remembering that recuperation cannot fully compensate for energy costs when driving along the highway at high speeds, where aerodynamic resistance is high.
For maximum fuel economy on the highway, use the "Hold" mode with a target charge setting of 50-60% so you have reserve power for overtaking, but without carrying the extra weight of a fully charged battery.
Comparison of modifications: Pro, Max and Ultra
Ruler Li Auto L7 is presented in several modifications that differ not only in interior equipment and autonomous driving systems, but also in battery capacity, which directly affects the dynamics and range. The basic Pro version is equipped with a smaller battery (36.8 kWh), which slightly reduces the electric range, but leaves the power plant just as powerful, since the motors are identical in all versions.
The Max and Ultra versions receive a larger battery (42.8 kWh), which has a positive effect on acceleration time and the ability to drive longer in EV mode. The difference in weight between the versions is about 60 kg, which is practically not felt in dynamics due to the high torque of the electric motors. All versions are equipped with the same 1.5-liter turbo engine-generator.
| Modification | Battery capacity (kWh) | Cruising range (CLTC), km | Acceleration 0-100 km/h, s | System power (kW) |
|---|---|---|---|---|
| Li L7 Pro | 36.8 | 1050 | 5.3 | 330 |
| Li L7 Max | 42.8 | 1315 | 5.3 | 330 |
| Li L7 Ultra | 42.8 | 1360 | 5.3 | 330 |
The choice between modifications is often dictated not so much by power as by the presence of additional comfort options and safety systems, since the power plant is the same for the entire model range. However, for those who plan to charge infrequently from the mains, the version with a larger battery (Max/Ultra) will be preferable, as it allows you to stay in pure EV mode longer between gas fill-ups.
Fuel consumption and efficiency
Certified fuel consumption Li L7 in battery charging mode (when the internal combustion engine is actively working) is about 7.6 liters per 100 km, but in real conditions this figure may vary. With a completely discharged battery and aggressive highway driving at high speeds, consumption can increase to 9-10 liters, since the small motor-generator has to work at the limit of its capabilities to provide energy to the powerful electric motors.
In a mixed cycle, when the driver regularly recharges the battery from the network, gasoline consumption tends to zero over short distances. For owners of private houses with an installed charging station Li Auto L7 can be operated as a full-fledged electric car for 5-6 days of the week, using gasoline only for rare long trips. This makes the cost per kilometer significantly lower than that of traditional gasoline analogues.
An important factor in efficiency is the weight of the car, which exceeds 2.5 tons. Despite the recuperation, physics is physics, and accelerating such a mass requires a lot of energy. Therefore, driving style directly affects consumption: smooth acceleration and the use of inertia can significantly reduce fuel consumption in hybrid mode.
Secrets of saving fuel on Li L7-->
spoiler:Use the "Comfort" mode on the gas pedal to smooth out peaks in energy consumption. Try to maintain the battery charge in the range of 20-70% for optimal operation of the recovery system and extend the life of Li-ion cells.
Powerplant Maintenance
Although Li Auto L7 Technically, it is an electric vehicle; the presence of an internal combustion engine imposes its own maintenance obligations. The 1.5 Turbo engine requires regular replacement of engine oil, filters and spark plugs, however, service intervals can be increased compared to conventional cars, since the engine operates in a more gentle, constant mode without sudden jumps in speed.
The cooling system is a critical component here, as it serves the internal combustion engine, the high-voltage battery, and the power inverters. It is necessary to regularly check the antifreeze level and the condition of the pipes, since overheating of any of the components can lead to an emergency shutdown of the system or power limitation (limp mode).
⚠️ Attention: Do not try to service the high-voltage part of the car yourself. Orange markings on cables indicate lethal voltage. All work on the battery and electric motors must be carried out by qualified specialists.
Transmission fluid in electric motor gearboxes also requires replacement, although less frequently than oil in classic automatic transmissions. The absence of a complex multi-stage gearbox simplifies the design, but requires high-quality maintenance of gearboxes that experience high loads from instantaneous torque.
The main conclusion: Li L7 combines the dynamics of an electric car with the autonomy of a gasoline car, but requires competent control of operating modes for maximum efficiency.
What is the real horsepower of the Li L7 engine?
The total power of the electrical system is 449 hp. (330 kW). The gasoline engine-generator has a power of 154 hp. (113 kW), but it is used to generate electricity, and not to direct traction.
Can Li L7 be driven on petrol only without charging?
Yes, the car can operate exclusively as a hybrid, using the internal combustion engine to generate electricity. Fuel consumption in this mode will be higher than with regular charging from the network, but the car is fully functional.
How long does it take to charge a Li L7 battery?
When using direct current (DC) fast charging, charging from 10% to 80% takes about 30 minutes. From home AC power, a full charge may take 5 to 7 hours depending on the charger's wattage.
Is it necessary to warm up the Li L7 engine in winter?
Special warming up of the internal combustion engine is not required, since the start-up occurs under the generation load. However, the system itself will start the motor at low temperatures to warm up the coolant and maintain the battery temperature, which is normal for operation.