Car-Modified Mobile Toilet
There are already practical cases of car-modified mobile toilets, which mainly integrate vehicle-mounted toilets into the vehicle structure through innovative designs to solve the problem of using the toilet during long-distance travel.

Seres' 'Vehicle-Mounted Toilet and Vehicle' Patent Design
The utility model patent applied for by Seres adopts a slide-rail vehicle-mounted toilet. Its core design is to hide the toilet under the front passenger and driver's seats, allowing it to be pulled out and retracted with a single button operation. This design targets the characteristics of new energy vehicles with long endurance and suitability for long-distance self-driving, focusing on addressing the needs in scenarios such as highway traffic jams or areas without toilets in remote locations. In terms of functional configuration, it is equipped with a 5L sealed waste collection tank for closed storage of waste, preventing odor leakage; a negative pressure odor removal system that reduces odor diffusion through air circulation; a constant temperature heating function to enhance user comfort; disposable toilet bags to simplify the cleaning process; and a foldable privacy curtain to protect user privacy. Structurally, this design deeply integrates the toilet with the vehicle's seat layout and slide-rail tracks, embodying a 'systems thinking' approach, which means optimizing functional modules from the perspective of the vehicle's overall structure rather than simply adding accessories.
Ji Shi Automobile's Vehicle-Mounted Toilet Accessory Solution
The vehicle-mounted toilet accessory launched by Ji Shi Automobile in 2024 adopts a modular design and is directly placed in the central storage compartment. Users can simply lift the lid and lay down a toilet mat to use it. Its advantages lie in easy installation and low cost. However, the founder clearly stated that this accessory is essentially an emergency solution with relatively basic functions, not involving complex systems such as sealed waste collection and odor removal, making it more suitable for short-term temporary use scenarios.
Comparison and Suitable Scenarios of the Two Solutions
Seres' patent design achieves functional completeness through structural integration, suitable for users with high requirements for toilet experience and those who frequently travel long distances. Ji Shi Automobile's accessory solution excels in flexibility, suitable for occasional emergency toilet needs. Both reflect the automotive industry's response to users'细分 (segmented) needs, but with different technical paths: the former emphasizes deep integration between the vehicle and functions, while the latter focuses on the versatility and rapid deployment of accessories. In the future, with technological iterations, vehicle-mounted mobile toilets may further optimize parameters such as waste collection tank capacity and odor removal efficiency, and explore联动 (integration) with autonomous driving scenarios (such as the vehicle automatically finding suitable parking spots for users to use the toilet).




