No need. It can convert wasted mechanical energy such as braking energy into electrical energy and store it in the battery during driving.
The hybrid system can charge the hybrid drive battery by recovering braking energy during deceleration and residual energy during uniform driving without using external power supply.
Personal experience: most people who eat melons stop at plug-in mixing. As a hybrid car owner, they have answered that plug-in hybrids don't need to be recharged for n times, but the Corolla/Lei Ling plug-in hybrid will come out next year, which may take more effort to explain. As for charging, unless you go downhill for a long time, the charging effect of deceleration kinetic energy recovery is limited, so it is not suitable to charge at a constant speed. Driving mainly depends on speeding up.
How long is the battery life?
The hybrid drive battery of a hybrid electric vehicle is equivalent to the life of the vehicle. Although the hybrid drive battery is repeatedly discharged and recycled, it will not fully charge or exhaust the battery. Only in such a shallow charging and discharging environment can the battery maintain a long life.
Personal experience: According to the actual use of Prius in North America and the use of the first batch of Prius/Camry dual-engine owners in China, the failure probability of hybrid battery is very low, which is basically consistent with the official statement, but it does not mean that the battery will not break, and any product will be damaged. However, the dual-engine model has 8 years and 200,000 kilometers (FAW Toyota)/lifetime battery warranty (GAC Toyota), so there is no need to worry about battery loss. Even if there is something wrong with the battery after over-warranty, the replacement cost is not expensive, and there is no need to replace it as a whole (4S is too high, please find a repair shop to replace it, and the specific price can be searched by Taobao and Xianyu). After disassembling the battery, there is a flaky Ni-MH battery module, which can be replaced as a single module. The price of hybrid Ni-MH battery is cheaper than that of lithium battery. Moreover, the emergence of a large number of Toyota hybrid taxis in the market means that there will be a large number of scrapped automobile parts in the future, and the programmed management of "shallow charging and shallow circulation" means that the power will not be exhausted or full, and it will always be maintained at the best working area of 40%-80%.
THS hybrid battery pack
THS hybrid battery pack
Management principle of THS hybrid battery
Management principle of THS hybrid battery
2011/Canadian TV conducted a survey of taxis in Vancouver (90% of taxis in Vancouver are Toyota Prius). The survey results show that Toyota Prius taxis (many of which have a total mileage of more than 1 10,000 kilometers) drive about 700,000 kilometers on average before replacing the battery for the first time. 20 1 1 year, the American Consumer Report also conducted a survey and test. Even in 10, the overall quality reliability of the Prius is very good, and the failure rate of the battery is only 1%. 1 1 year, the failure rate of the battery is relatively high, reaching 4%. Compare it with a comparative test that spans ten years. A first-generation Prius with a 10 mileage of 330,000 kilometers and a new Prius with a mileage of only 3,200 kilometers in the Consumer Report ten years ago were all tested according to the same standards. Among them, the fuel consumption test adopts the test standard formulated by Consumer Report, and the performance test part comprehensively tests the acceleration performance under various working conditions. The test results are as follows.
THS Reliability Test Results Consumer Report
THS Reliability Test Results Consumer Report
10 The fuel consumption and power performance of the old car and the new car, which used 330,000 kilometers in 0/0, remain at the same level, indicating that the hybrid system and the Ni-MH battery pack are still working normally. Moreover, even though the first generation Prius has been used for ten years/330,000 kilometers, its Ni-MH battery pack has never been replaced, and the situation that people questioned ten years ago that fuel consumption and power performance would be greatly affected by battery capacity attenuation has not appeared.
Do the twin engines need special maintenance?
No need. Although hybrid vehicles are equipped with electric motors, they are exactly the same as ordinary cars in terms of maintenance.
Personal experience: In fact, the maintenance of battery cooling filter is very necessary. If the dust seriously affects the heat dissipation, it may cause the hybrid system to fail. However, generally speaking, it will be checked in 4S during maintenance, as long as you pay attention to cleaning up the accumulated dust or Taobao buys a ten-dollar filter and replaces it directly.
It is necessary to mention extra about the maintenance of double engines: because many motors will participate in braking to recover power in daily driving, the brake disc loss will be smaller than that of gasoline vehicles; In addition, the power supply of the electric appliances in the car is provided by the hybrid battery, and the battery loss will be less than that of the gasoline car; In daily urban driving, the engine of the dual-engine is turned off half the time and driven by the motor, so in theory, the engine oil can be changed after driving for a longer mileage, the ignition times of the spark plug are less, and the replacement cycle is longer; E-CVT is not a traditional gearbox, and the gearbox oil does not even need to be replaced; Finally, due to the characteristics of THS system, the minimum engine speed will be above 1000 rpm, so the engine is not easy to produce carbon deposit.
What are the advantages of hybrid cars?
Excellent strong power performance, excellent low noise, low fuel consumption and low exhaust emissions.
Personal experience: the real engine start and stop. Turn off the engine in the urban area, quiet without engine vibration, absolute ride comfort, low fuel consumption and emissions, more environmental protection, no mileage anxiety and reduce the number of times of entering and leaving the gas station. However, excellent strong dynamic performance cannot be justified. The front acceleration is not bad because of the motor drive, but the middle and rear parts are weak, especially when the speed is above 100, the acceleration performance is poor, and 0 1 is even worse than its own 1.2T model. The 1.8L Atkinson engine of Corolla/Ralink Shuangling has a poor horsepower of 99 HP, which is 136 after the motor is superimposed. Vehicles with displacement similar to that on the market (name map 1.8 143/ sylphy 1.8 139/ Lingpai 1.8 136/ Deyuanlong1
Is the fuel consumption of hybrid cars really good?
Compared with ordinary cars with the same displacement, the same distance only needs about half of gasoline. Hybrid electric vehicles have both engines and motors, which complement each other and give full play to the best energy efficiency. When the engine speed changes greatly or the car starts, it consumes more oil because of the heavy burden. In the case of heavy load of similar engines, hybrid electric vehicles use electric motors to drive cars to reduce the load of engines. For example, when starting, the motor is used to drive the car. When accelerating, the motor assists the engine to save fuel. In addition, during deceleration, energy is effectively recovered and converted into electric energy to charge the battery.